Grade xi

SECOND term examination 2018-19

Revision question paper

&

Answer key

1

THE CHOICE SCHOOL SECOND TERM EXAMINATION 2018-19

REVISION QUESTION PAPER

Time: 3 Hrs. COMPUTER SCIENCE Marks: 70

1. a) Out of the following, find those identifiers that cannot be used for naming variables or

functions in a Python program. (2)

Price*Qty, while, For, do, -tax, or, Row1, _sal

b) Name the function/method that (1)

i) checks whether the character is space or not

ii) returns the largest integral value<=x

c) Rewrite the following code in python after removing all syntax error(s). Underline each

correction done in the code. (2)

d) Find the output of the following code: (2)

e) WAP to find the divisors of a number (2)

f) Write the output of the following code: (1)

for I in Range(1,count+1):

S+=1

if I>5:

break

else

Print S

for name in ['Panda','Bear','Koala','Possum']:

print name

if name[0]=='S':

break

else:

print “Well Done”

for i in range(3):

print(“a”,end=” “)

for j in range(3):

print(“b”)

2

2. a) What is the use of continue statement?. Explain with an example. (2)

b) Predict the output of the following code: (3)

c) What would be the output of the following program: (2)

d) Answer the questions given below in the following code: (2)

What does the following lines print? i) print list(D.keys()) ii) print (D.get('overcast','morning'))

iii) print (C['day']) iv) print (E['hello'])

3. a) What is a dictionary? Explain any 3 ways to create dictionaries with values using appropriate examples. (3)

b) Write a program that will take a list of integers only and print the list after removing all duplicate values with original order reserved. (3) eg: if the list is [12,24,35,24,88,120,155,88,120,155], the output should be [12,24,35,88,120,155] c) Name the function/method required required for (1)

i) Finding second occurrence of 'm' in 'madam'. ii) Get the position of an item,i in the list, L.

Names1=['Amir','Barry','Charles','Dao']

Names2=Names1

Names3=Names1[:]

Names2[0]='Alice'

Names3[1]='Bob'

Sum=0

for mylist in(Names1,Names2,Names3):

if mylist[0]=='Alice':

Sum+=1

if mylist[1]=='Bob':

Sum+=10

print (Sum)

word=”Python”

for letter in word:

print(letter)

A={}

B={'hello':'world'}

C=dict()

D=dict([ ['sunny','afternoon'],['blustery','day'] ])

E=dict(list(B.items())+list(D.items()))

A['cold']='winter'

A['frozen']='tundra'

D['cool']='breeze'

3

d) Give the output of the following with justification: (2)

e) Give the example of

I. Operating System. II) Input Device III) Application software IV) Compiler (2)

4. a) What is the difference between del and pop()? Give an example of each. (2)

b) Write a program to compute the frequency of the words from the input. The output should be given after sorting the words alphanumerically. (3) eg: if the input is New to Python or choosing Python 2 or Python 3? Read Python 2 or Python 3

The output should be: 2:2 3:1 3?:1 New:1 Python:5 Read:1 and:1 between:1 choosing:1 or:2 to:1

c) What would be the output of the following code if (2) ntpl=('Hello','Rita','How''s','life?')

d) Write a program that reads a string and prints a string by removing the vowels from the original string. (2)

e) Write a program in python to find and display the prime numbers between 2 and N. Input the value of N. (2)

5. a) Distinguish between syntax errors and semantic errors. Give examples of each type. (2)

b) Suggest appropriate functions for the following tasks: (2) i) To convert the first letter of a sentence to upper case ii) to check whether string contains only alphanumeric letters iii) to clear the dictionary, d. iv) to compute am using function.

c) Write a program to sort a list of integers in descending order using insertion sort (3) d) What will the following list look like after first 3 passes of bubble sort algorithm? Show the list after every pass. The list has to be arranged in the ascending order.

X=3

X+=X-X

print X

(a,b,c,d)=ntpl

print (“a is: “,a)

print (“b is: “,b)

print (“c is: “,c)

print (“d is: “,d)

ntp=(a,b,c,d)

print (ntpl[0][0]+ntpl[1][1], ntpl[1])

4

(3)

16 19 11 15 10

e) Consider the following list : [32,33,5,2,14,-4,22,39,-9] (2)

Each of the following is a view of a sort in progress(after a few passes) of the above list. Identify the sorting algorithm used in each case.

i) [-4,2,-9,5,14,22,32,33,34,39] ii) [ -9,-4,2,5,14,33,22,39,34,32]

6. a) How are the SQL statements categorized? Mention them. (2) b) Mention any four different data types in MySQL. (2) c) Write the SQL commands based on the table STUDENT given below (4)

Student

No.

Class Name Game Grade1 SUPW Grade2

10 7 Sameer Cricket B Photography A

11 8 Sujit Tennis A Gardening C

12 7 Kamal Swimming B Photography B

13 7 Veena Tennis C Cooking A

14 9 Archana Basket ball A Literature A

15 10 Arpit Cricket A Gardening C

i) Display the names of the students who are getting a grade 'C' in either GAME or

SUPW. ii) Display the different Games offered in the school iii) Display the SUPW taken by the students whose name starts with 'A' iv) Display the names and grades of the students.

d) Write the output of the following SQL statements: (2)

i) SELECT CONCAT(name,” plays “,Game) “STUDENTS SPORTS” from student;

ii) SELECT RIGHT(SUPW,5) from student; iii) SELECT ROUND(123.6456,2) “Round Off”, TRUNCATE(123.6456,2)

“Truncate”; iv) SELECT MONTH(CURDATE())+10 “After 10 Months”;

e) Convert the following: (4) i) 423 base10 to base16 ii) 11111011110101 to base8 iii) EB4A base16 to bae10 iv) 11011110101110 to base16 f) Represent the character with unicode codepoint U+30E9(hex) in UTF-8 and UTF-32 encoding format. (3)

***********************

1

THE CHOICE SCHOOL

Tripunithura

COMPUTER SCIENCE ANSWER KEY

1. a) Out of the following, find those identifiers that cannot be used for naming

variables or functions in a Python program. (2)

Price*Qty, while, For, do, -tax, or, Row1, _sal (4 * 1/2 =2)

b) Name the function/method that (1)

I. checks whether the character is space or not <string>.isspace()

II. returns the largest integral value<=x math.floor(x) (2 * 1/2=1)

c) Rewrite the following code in python after removing all syntax error(s). Underline

each correction done in the code. (2)

(4 *1/2=2)

d) Find the output of the following code: (2)

Panda

Bear

Koala

Possum (3 * 1/2)

Well Done (1/2)

e) WAP to find the divisors of a number (2)

num=int(input(“Enter the number”))

for i in range(2,int(num/2)+1): (1/2)

if num%i==0: (1)

print (i,end=” “) (1/2)

for I in Range(1,count+1):

S+=1

if I>5:

break

else

Print S

for name in ['Panda','Bear','Koala','Possum']:

print name

if name[0]=='S':

break

else:

print “Well Done”

S=0; count=10

for I in range(1,count+1):

S+=1

if I>5:

break

else

print S

2

f) Write the output of the following code: (1)

a a a (1/2)

b

b

b (1/2)

2. a) What is the use of continue statement?. Explain with an example. (2)

continue – forces the next iteration in a for loop or while loop (1)

ignores the rest of the statements in the block

eg: n=10

for i in range(n): (1)

if(i%2==1): #if i is odd it moves to next iteration

continue

else: # else it is printed. Only even n numbers

print i # get printed

b) Predict the output of the following code: (3)

1 (1)

2 (1)

12 (1)

c) What would be the output of the following program: (2)

P y (1/2) t h (1/2) o n (1) d) Answer the questions given below in the following code: (2)

for i in range(3):

print(“a”,end=” “)

for j in range(3):

print(“b”)

Names1=['Amir','Barry','Charles','Dao']

Names2=Names1

Names3=Names1[:]

Names2[0]='Alice'

Names3[1]='Bob'

Sum=0

for mylist in(Names1,Names2,Names3):

if mylist[0]=='Alice':

Sum+=1

if mylist[1]=='Bob':

Sum+=10

print (Sum)

word=”Python”

for letter in word:

print(letter)

3

What does the following lines print? i) print list(D.keys()) ['sunny','bluster','cool'] ii) print (D.get('overcast','morning')) 'morning'

iii) print (C['day']) Key Error

iv) print (E['hello']) 'world' (4 * 1/2)

3. a) What is a dictionary? Explain any 3 ways to create dictionaries with values using appropriate examples. (3) Dictionary – a mapping of key-value pairs. Unordered mapping. Keys should be immutable and unique (1 1/2) The different ways in which dictionary can be created are (1 1/2)

i) using keyword arguments a=dict(keyword1=value1,keyword2=value2,....)

eg: a=dict(name='john',age=34) ii) using dict()

eg: a=dict() a['name']='john'; a['age']=34

iii) using comma seperated key:value pairs eg: a=dict({'name':'john','age':34})

b) Write a program that will take a list of integers only and print the list after removing all duplicate values with original order reserved. (3) eg: if the list is [12,24,35,24,88,120,155,88,120,155], the output should be [12,24,35,88,120,155] #removing duplicate values

n=int(input("limit")) l=[] for i in range(n): l.append(int(input("value"))) (1/2) print l[i] i=0 while i<n: (1/2) j=i+1 while j<n: (1/2) if l[i]==l[j]: (1/2) l.pop(j) (1/2) n=n-1 (1/2) j=j+1

A={}

B={'hello':'world'}

C=dict()

D=dict([ ['sunny','afternoon'],['blustery','day'] ])

E=dict(list(B.items())+list(D.items()))

A['cold']='winter'

A['frozen']='tundra'

D['cool']='breeze'

4

i=i+1 print(l)

c) Name the function/method required required for (1)

i) Finding second occurrence of 'm' in 'madam'. 'madam'.find('m',1) ii) Get the position of an item,i in the list, L L.index(i) (2 *1/2)

d) Give the output of the following with justification: (2) 3 (1/2) RHS is evaluated first, gives 0 and added to LHS

ie 3+0 =3 (11/2)

e) Give the example of

I. Operating System. Windows II) Input Device Keyboard

III) Application software MS WORD IV) Compiler C++ (4 *1/2) (2)

4. a) What is the difference between del and pop()? Give an example of each. (2) del deletes an item from the list and does not return the value (1) pop() deletes an item and return it l=[2,3,4] (1) del l[0] will not give 2, just deletes it where as, l.pop(0) will give 2 and delete it

b) Write a program to compute the frequency of the words from the input. The output should be given after sorting the words alphanumerically. (3) eg: if the input is New to Python or choosing Python 2 or Python 3? Read Python 2 or Python 3

The output should be: 2:2 3:1 3?:1 New:1 Python:5 Read:1 and:1 between:1 choosing:1 or:2 to:1 msg=input("Enter the string: ") d={} l_msg=s.split() for words in l_msg: if words not in d: d[words]=1 (1) else: d[words]+=1

d_freq=d l_freq=list(d_freq.keys()) (1)

X=3

X+=X-X

print X

5

I_freq.sort() for i in range(len(l_freq)): for j in d_freq: if l_freq[i]==j: (1) print (j,':',d_freq[j]) c) What would be the output of the following code if (2) ntpl=('Hello','Rita','How''s','life?')

a is Hello

b is Rita

c is How's (1)

d is life?

Hi Rita (1)

d) Write a program that reads a string and prints a string by removing the vowels from the original string. (2) s=input(“Enter a string”) newstr=”“ (1/2) for letter in s: if letter in ['a','e','i','o','u'] or letter in ['A','E','I','O','U']: (1/2) continue else: newstr+=letter (1/2) print(newstr) (1/2)

e) Write a program in python to find and display the prime numbers between 2 and N. Input the value of N. (2)

N=int(input(“Enter the limit”))

for i in range(2,N): for j in range(2,i/2+1): (1) if i%j==0: (1/2) break else: print( i) (1/2)

5. a) Distinguish between syntax errors and semantic errors. Give examples of each type. (2)

Syntax errors – errors in syntax, when rules of the language are not followed eg: if a>0 # no : after a>0 Print(a) #Print is not right, print is right (1)

(a,b,c,d)=ntpl

print(“a is: “,a)

print (“b is: “,b)

print (“c is: “,c)

print (“d is: “,d)

ntp=(a,b,c,d)

print( ntpl[0][0]+ntpl[1][1], ntpl[1])

6

Semantic errors – statements follows the rules but does not make sense eg: x+10 =a # assigning a value to an expression is not making sense (1) b) Suggest appropriate functions for the following tasks: (2)

i) To convert the first letter of a sentence to upper case <string>.capitalize()

ii) to check whether string contains only alphanumeric letters <string>.isalnum()

iii) to clear the dictionary, d. d.clear() iv) to compute am using function. math.pow(a,m)

c) Write a program to sort a list of integers in descending order using insertion sort n=int(input(“No: of integers”)) (3) slist=[] for i in range(n): num=int(input(“Number”)) slist.append(num) for i in range(1,n): (1/2) temp=slist[i] (1/2) j=i-1 while temp>slist[j] and j>=0: (1) s[j+1]=s[j] (1/2) j=j-1 s[j+1]=temp (1/2) print slist d) What will the following list look like after first 3 passes of bubble sort algorithm? Show the list after every pass. The list has to be arranged in the ascending order. (3)

16 19 11 15 10

Pass 1 16 11 15 10 19 Pass 2 11 15 10 16 19 Pass 3 11 10 15 16 19 ( 3 *1) e) Consider the following list : [32,33,5,2,14,-4,22,39,-9] (2)

Each of the following is a view of a sort in progress(after a few passes) of the above list. Identify the sorting algorithm used in each case.

i) [-4,2,-9,5,14,22,32,33,34,39] Bubble Sort ii) [ -9,-4,2,5,14,33,22,39,34,32] Insertion Sort (2 * 1)

6. a) How are the SQL statements categorized? Mention them. (2) SQL commands are categorized as follows:

7

i) DDL – Data Definition Language ii) DML – Data Manipulation Language iii) TCL – Transaction Control Language iv) DCL – Data Control Language (4 * 1/2)

b) Mention any four different data types in MySQL. (2) int,varchar,date,decimal (4 * 1/2 =2) c) Write the SQL commands based on the table STUDENT given below (4)

Student

No.

Class Name Game Grade1 SUPW Grade2

10 7 Sameer Cricket B Photography A

11 8 Sujit Tennis A Gardening C

12 7 Kamal Swimming B Photography B

13 7 Veena Tennis C Cooking A

14 9 Archana Basket ball A Literature A

15 10 Arpit Cricket A Gardening C

i) Display the names of the students who are getting a grade 'C' in either

GAME or SUPW. SELECT name from student where grade1='C' or grade2='C';

ii) Display the different Games offered in the school SELECT DISTINCT Game from student;

iii) Display the SUPW taken by the students whose name starts with 'A' SELECT SUPW from student WHERE name like “A%”;

iv) Display the names and grades of the students. SELECT name,grade1,grade2 from student; ( 4 * 1) d) Write the output of the following SQL statements: (2)

i) SELECT CONCAT(name,” plays “,Game) “STUDENTS SPORTS” from student;

STUDENTS SPORTS

Sameer plays Cricket

Sujit plays Tennis

Kamal plays Swimming

Veena plays Tennis

Archana plays Basket ball

Arpit plays Cricket

ii) SELECT RIGHT(SUPW,5) from student;

8

RIGHT(SUPW,5)

raphy

ening

raphy

oking

ature

ening

iii) SELECT ROUND(123.6456,2) “Round Off”, TRUNCATE(123.6456,2) “Truncate”;

Round Off Truncate

123.65 123.64

iv) SELECT MONTH(CURDATE())+10;;

MONTH(CURDATE())+10

21

(4 * 1/2 =2) e) Convert the following: (4) i) 423 base10 to base16 1A7 ii) 11111011110101 to base8 373365 iii) EB4A base16 to base10 60234 iv) 11011110101110 to base16 37AE (4 *1) f) Represent the character with unicode codepoint U+30E9(hex) in UTF-8 and UTF-32 encoding format. (3) U+30E9 is 12,521 in Base10 = 11000011101001 in base2 (1/2)

1 1 1 0 0 0 1 1

UTF8 3 octet representation (1 1/2)

1 0 0 0 0 0 1 1

1 0 1 0 1 0 0 1

UTF 32 is 4 byte fixed length format 11000011101001 (1)

0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0

0 0 1 1 0 0 0 0

1 1 1 0 1 0 0 1

***********************

THE CHOICE SCHOOL

SECOND TERM EXAMINATION 2018-19

REVISION QUESTION PAPER

Time: 3 Hrs. ACCOUNTANCY Marks:90

14

4

15 4

16 4

17 4

18 6

19 6

20

6

21

22 6

23 8

24 8

THE CHOICE SCHOOL

SECOND TERM EXAMINATION 2018-19

REVISION QUESTION PAPER

Time: 3 Hrs. BUSINESS STUDIES Marks:90

GENERAL INSTRUCTIONS:

Answers to questions carrying1 mark may be from one word to one sentence.

Answers to questions carrying 3 marks may be from 50 to 75 words.

Answers to questions carrying 4-5marks may be about 150 words.

Answers to questions carrying 6 marks may be about 200 words.

1 Who defines the powers, functions, roles and regulations for a statutory corporation? 1

2 Which institute is called as a debtor as well as a creditor? 1

3 What is a public deposit? 1

4 Which certificate is known as the birth certificate of the company and why? 1

5 Why do business enterprises enter into joint ventures? 1

6 Akash is a wholesaler and vikas is a retailer. Akash sold goods of Rs.50000 to Vikas

on credit basis for one month. Is this a source of fund for Vikas? If yes mention the

name of source

1

7 How much paid up capital is held by the government in a government company?

Give 1 example of the same.

1

8 Expand VIRUS, AOA 1

9 Explain the terms 1.ADR, 2.GDR 3.FCCB 3

10 Differentiate between private and public company 3

11 Explain the procedure for registration of partnership firm. 3

12 “In spite of numerous advantages, e-business cannot replace the traditional

business”. Support this statement

3

13 Write the various types of security and safety risks associated with carrying out e-

business transaction.

3

14 Explain the concept OPC and its various features. 3

15 What do you mean by outsourcing? What is the need for outsourcing? 4

16 “Registration of partnership is not mandatory but is very beneficial”. How? 4

17 Explain the various types of telecom services. 4

18 Steel Authority of India Limited is a type of public sector enterprise. Identify which

type of organization it is. Also write the various limitations of such enterprise.

4

19 “Karta manages all the activities of this form of organisation”. Identify the type and

also write the merits of the same.

4

20 Write in detail functions of IMF 5

21 Explain the merits of CP. 5

22 Mention the source of financing which is generated internally and has some merits. 5

Explain any five such merits.

23 Briefly explain the functions of commercial banks. 5

24 A company raises funds from the public to meet its financial requirements. Explain

the steps required to raise the funds from public.

6

25 “There are certain basic considerations to be kept in mind while choosing an

appropriate form of business organization”. Support this statement.

6

26 Explain the objectives of Export trade. 6

27 “Promoters perform various functions to bring a company into existence”. Explain

the functions of a promoter

6

Answer key

1 The special Act , which brings statutory corporation into existence 1

2 Bank 1

3 Funds raised from public as an investment in a business organisation 1

4 Certificate of incorporation, which signify the birth of the company 1

5 Expansion of business

Development of new products

Advanced technology

1

6 Trade credit 1

7 51%, SAIL,BHEL 1

8 Vital Information Under Siege

Articles of Association

1

9 Meaning of ADR

Meaning of GDR

Meaning of FCCB

3

10 Members- public co –min 7 max unlimited private co-min 2

maximum -50

No: of directors public co- 3 private co-2

Min paid up capital- 5 lakhs private co- 1

lakh

Transfer of shares public co- no restriction private co-

restriction on transfer

Invitation- public co can subscribe shares from public private

co- cannot

3

11 a. Submission of application form to registrar of firms with

name, location, names, date on which each partner joined,

duration etc

b. Deposit of fees

c. Registrar after approval will make an entry in register of firms

and issue certificate of registration

3

12 Limitations

a. Lack of personal touch

b. Time consuming

c. Fraudulent trading

d. People resistance

3

13 a. Transaction risks

b. Data storage and transmission risks

c. Risks of threat to intellectual property and privacy

3

14 OPC- introduced by companies act 2013-hybrid of sole proprietor

and company form of business

Features

a. Only one shareholder

b. Nominee for shareholder

c. Director

3

15 Contracting out-non core business activities-outside agencies

specialized in those areas

4

a. Focusing on attention

b. Quest for excellence

c. Cost reduction

d. Fillip to economic development

16 a. No partner can file a case against any other partner if there is

no written document

b. Firm cannot file a case against any partner

c. No partner can file a case against the firm

d. Firm cannot file a case against third party

4

17 a. Cellular mobile services

b. Radio paging services

c. Fixed line services

d. Cable services

4

18 Government company.

Limitations

a. Provisions of companies act does not apply

b. Evades constitutional responsibility

c. Management administration with government

4

19 1. HUF

Merits

1. Effective control

2. Continued business existence

3. Limited liability of members

4. Increased loyalty and cooperation

4

20 1. Short term credit

2. Orderly adjustment of exchange rates

3. Reservoir of the currencies of all member countries

4. Acting as lending institution of foreign currency

5. Determining the value of a country’s currency and altering

it

6. Providing machinery for international consultations

5

21 1. Does not have restrictive conditions

2. CP to the issuing firm is lower than the cost of commercial

bank loans

3. Continues source of funds

4. Companies can park their excess funds in CP thereby

earning some good return on the same.

5

22 a. Economical

b. No obligation

c. No charge on the assets

d. Increased financial strength

5

e. Shock absorption

(Retained earnings)

23 Functions

1. Acceptance of deposits

2. Lending of funds

3. Cheque facility

4. Remittance of funds

5. Allied services

Each

point

carri

es 1

mark

(5)

24 a. SEBI Approval

b. Filing of prospectus or statement in lieu of prospectus

c. Appointment of bankers and underwriters

d. Minimum subscription

e. Permission from stock exchange

f. Allotment of shares

Each

point

carri

es 1

mark

(6)

25 a. Cost and ease in setting up of organization

b. Liability

c. Continuity

d. Management ability

e. Capital considerations

f. Degree of control

g. Nature of business

Each

point

carri

es 1

mark

(6)

26 1. To sell surplus goods

2. To make better utilisation of resources

3. To earn foreign exchange

4. To generate employment

5. To increase government revenue

6. To increase government revenue

6

27 Functions

1. Identification of business opportunity

2. Feasibility studies

3. Name approval

4. Fixing up signatories to MOA

5. Appointment of professionals

6. Preparation of necessary documents

Each

point

carri

es 1

mark

(6)

THE CHOICE SCHOOL

SECOND TERM EXAMINATION 2018-19

REVISION QUESTION PAPER

Time: 3 Hrs. BIOLOGY Marks: 70

General Instructions:

All questions are compulsory.

The question paper consists of four sections A, B, C, and D.

Questions 1-5 carry one mark each.

Questions 6-12 carry two marks each.

Questions 13-24carry three marks each.

Question 25-27 carry five marks each.

SECTION - A

1. State the function of Organ of Corti.

2. What is tidal volume.

3. Classify the types of synovial joints.

4. Name the hormones produced by the posterior Pituitary.

5. Mention the functions of liver.

SECTION - B

6. List the sounds which can be heard when stethoscope is used .State its significance.

7. How does carbon dioxide get transported in our body?

8. Describe the digestive role of chymotrypsin .Which are the other two digestive enzymes of the

same category secreted by the source gland.

9. What is venation? Classify the types.

10. Differentiate between diabetes insipidus and diabetes mellitus.

11. What are bulliform cells? Mention its significance.

12. Name the type of tissue :

a. tissue present beneath the skin.

b. tissue present in the wall layers of the stomach.

c. tissue present in the pancreatic ducts

d. tissue present in your heart

SECTION - C

13. Explain renin-angiotensin mechanism

14. Mention the enzymes secreted by the pancreas with their functions.

15. Describe the steps involved in coagulation of blood.

16. What is micturition? Explain the steps in micturition.

17. Discuss the types of muscle fibres with four differences.

18. Adrenaline is also called emergency hormone. Comment.

19. Describe the structure of dicot seed with the help of a diagram.

20. Give reason for the following;.

a. transmission of nerve impulses is much faster in myelinated nerve fibres.

b. fovea has highest resolution

c. cerebrum has numerous folds.

21. Represent the transverse section of a dicot root[enlarged view]

22. What is aestivation? Classify the types with the help of diagrams.

23. Describe the mechanism of hormone action.

24.With the help of a chart represent the types of ABO Blood groups and specify the type/s of

antigen/s or antibody/ies present in each group.

SECTION-D

25.With the help a of diagram explain the structure of human eye.

26 Explain the mechanism of transmission of nerve impulses along the nerve fibre.

27.List the hormones secreted by adenohypophysis with their functions.

**********************

BIOLOGY ANSWER KEY

1 They have receptor cells , which helps in transmission of messages to the brain.

1mark

2 Volume of air inspired or expired during a normal respiration. 1 mark.

3. Ball and socket joint, hinge joint, pivot joint, gliding joint. 1 mark. 4. Oxytocin, vasopressin. 1mark.

5. Stores glycogen, synthesis of fats 1mark

6. First sound is lub –which shows the closing of tricuspid and bicuspid valves, second sound is dub sound which is the closure of semi lunar valves.

2 marks.

7. Carbon dioxide is carried by haemoglobin as carbamino-haemoglobin. This depends on the concentration of Co2,O2 .When Pco2 is high and PO2 is low in tissues more binding occurs, when Pco2 is low and PO2 is high in the alveoli the dissociation of Co2 from carbamino- haemoglobin takes place. Carbonic anhydrase facilitates this reaction in both the directions.

2marks.

8. Chymotrypsinogen helps in breaking down proteins into peptides. Trypsinogen and Procarboxypeptidases.

2 marks.

9. Arrangement of veins on a leaf. Reticulate and parallel venation. 2 marks.

10. Deficiency of insulin leads to diabetes mellitus. Deficiency of ADH leads to diabetes insipidus.

2 marks

11. Specialized cells on the epidermal surface of monocot leaves. It reduces rate of transpiration.

2marks

12. a. areolar tissue b. smooth muscles c. compound epithelium d. cardiac muscle

2 marks.

13. JGA plays a complex regulatory role. A fall in the glomerular blood flow activates the JG cells to release renin which converts angiotensinogen into angiotensin1 and into angiotensin 2 which regulates

3marks.

14. It helps in the production of trypsinogen, chymotrypsinogen and procarboxy peptidases. pancreatic lipase, amylase, nucleases.

3 marks.

15. Injured tissue gets sealed with the help of a clot. Clot is formed with the help of blood cells and fibrin threads. Fibrin threads are formed from fibrinogen. Thrombin is produced from prothrombin Prothrombin is produced from thromboplastin.

3 marks.

16. The process of passing urine from the urinary bladder is called 3 marks

micturition. As urine collects, the muscular walls of the bladder distend to accommodate it. Distention of its walls stimulates the sensory nerve endings in the bladder wall and this sets up reflexes, which urges to pass urine.

17.

Characteristic features.

striated Non-striated cardiac

shape cylindrical spindle branched branching Un branched Un branched branched

nucleus multinucleate uninucleate uninucleate Intercalated disc

absent absent present

Mode of tiredness

Very fast slow never

3marks

18. It prepares the body to face the stress or danger. Faster heartbeat. Blood supply to heart increases and skeletal muscles supply reduced.

3 marks.

19. Figure-77-page-5.18 3 marks.

20.a..b c.

It can transfer the messages fast as it has myelinated fibres It has maximum number of cones To increase the surface area.

3mrks

21. Fig-6-.6a-page-91 3 marks.

22. It refers to the arrangement of sepals or petals on flower. Valvate, imbricate, twisted, Papillionceous.

3 marks.

23. Hormone action can be –quick acting type-receptor is located outside the plasma membrane ,because they are large sized and not soluble in fats they cannot move into the cell. It forms complex and send the second messenger into the cell. Hormones which act slow are small and are soluble in fats and bind to the protein receptor of the cell membrane and enter the cytosol. This in turn produces RNA which brings specific effect.

3marks

24. Name of the blood group

antigen present

antibody present

A A b

B B a

AB A,B[BOTH] none O NONE a,b

3marks.

25. Page-323 fig-21.6 Parts-sclera choroid, retina Cornea is the small transparent projecting part and is externally covered by conjunctiva. Retina consists of rods and cones. Rods are functional at dim light. Cones are functional during day time and bright lights. The fluid filled area between the cornea and the lens is the aqueous humour it provides nourishment to the non-vascular lens and cornea. Vitreous chamber is found between retina and lens. They have blind spot with no photoreceptors are present and yellow spot with cones only.

5 marks.

26. Neurons are excitable because their membranes are in polarized state. Ion channels are present .When a neuron is not conducting it is permeable to potassium and nearly impermeable to sodium ions . Axoplasm is concentrated with proteins and K+ ions. Outside it has high concentration of sodium ions. When Stimulus is applied to a site A on the polarized membrane it becomes freely permeable to N+ ions which leads to polarity difference. Thus there is reversal of polarity this site. At sites a head B the polarity is opposite. Thus current flows from A to B and at B from B to A.

5 marks.

27. HORMONES AND THEIR FUNCTIONS

Name of the hormone

Function/s

Thyroid stimulating hormone

Increased uptake of iodine

Adrenocorticotrophic hormone

Increased synthesis of corticoids

Somatotrophic hormone

Increased growth of bones, increase up take of proteins.

LH Proliferation of mammary glands

5 marks.

FSH Helps in the production of gametes.

THE CHOICE SCHOOL

SECOND TERM EXAMINATION 2018-19

REVISION QUESTION PAPER

Time: 3Hrs. CHEMISTRY Marks: 70

Questions 1-5 carry 1 mark each.

Questions 6-12 carry 2 marks each.

Questions 13-24 carry 3 marks each.

Questions 25-27 carry 5 marks each.

1) Why is KO2 paramagnetic?

2) Mg2+

is more hydrated than Na+, Why?

3) LiCl crystals are pink in colour, Why?

4) In terms of Charles’ law, explain why -273⁰C is the lowest temperature?

5) What is the pH of a soft drink whose hydrogen ion concentration is

3.8 x 10-3

M?

6) Account for the following:

i) Li2 CO3 decomposes at lower temperature whereas Na 2CO3 decomposes at

higher temperature, Why?

ii) LiI is more soluble than KI in ethanol, Why?

7) Critical temperature of CO2 and H2 O are 31.1⁰C and -81.9 ⁰ C

respectively. Which of these can be liquefied easily, Why?

8) Niobium crystallises in BCC structure. If Atomic Radius is 143.1pm

,Calculate the density of Niobium ( Atomic Mass of Niobium=93 U)

9) Benzene on Combustion produces CO2, H2O and 3267 KJ/mol of heat is

liberated. Calculate the standard enthalpy of formation of benzene. (∆f H⁰ of

CO2 and H2O are -393 and -285.83 kJ/ mol)

10) If B-Cl has dipole moment, why does BCl3 has zero dipole moment?

11) Illustrate Solvay’s process and explain the various reactions in the

preparation of washing powder.

12) Calculate the Packing efficiency for a simple cubic lattice.

13) a) Compare the structure of H2 O and H2 O2.

b) What causes temporary and permanent hardness of water?

14) A gaseous mixture containing 50g of N2 and 10g of O2 were enclosed in

a vessel of 10 L capacity at 27⁰ C. Calculate a) the moles of each gas b)

the partial pressure of each gas c) the total pressure of the gaseous

mixture.

15) Deduce an expression for pressure-volume work.

16) Illustrate the Molecular orbital diagram for Oxygen peroxide ion and

calculate its bond order and predict its magnetic character.

17) Give reason:

a) CO2 molecule has zero dipole moment.

b) LiCl has lower melting point than NaCl.

c) Solubility of alkaline metal carbonates in water decrease down the

group, why?

18) Write short notes on

a) Common ion effect

b) pH

c) Heterogeneous Equilibrium.

19) Explain the following:

a) Schottky Defect

b) ferromagnetism

c) Cation excess defect.

20) If the density of methanol is 0.793Kg/mol, What is the Volume needed for

making 2.5 L of its 0.25M solution?

21) Discuss the hybridization in phosphorous penta chloride.

22) What do you understand by auto-protolysis of water? What is its

significance?

23) What are semiconductors? Classify with examples.

24) a. State Heisenberg’s Uncertainity Principle.

b. List the quantum numbers for 3d Orbitals .

c. Write the electronic Configuration of Cu+ ion.

25) i) Write short notes on a) Entropy b) Gibbs free energy.

ii) Find the equilibrium constant for the reaction at 298K

2 NH3 + CO2⇋NH2CONH2 + H2O .

(Standard Gibbs energy change ∆rG⁰ at the given temperature is -13.6

KJ/mol).

26) What happens when:(Give Chemical equations)

a) Sodium hydrogen carbonate is heated.

b) Sodium amalgam reacts with water.

c) Fused sodium metal reacts with liquid ammonia.

d) Lead sulphide reacts with hydrogen peroxide.

e) Quick lime reacts with Silica.

27) Calculate the degree of ionization of 0.1 mol/L solution of acetic acid, given

Ka for acetic acid is 1.8 x 10-5

.

*******************

Chemistry – Answer key

Q.N0 Mks

1. Due to the presence of an unpaired electron in the antibonding Molecular Orbital. 1

2. Small size of Magnessium ion. 1

3. Farbenzenter .The anionic sites are Occupied by electrons. Excess of LiCl makes it pink. 1

4. According to Charles’ law, V0 is the Volume of the gas at 00 C and V at t

0 C.

Hence when t=-273 0C,the volume of the gas becomes zero, the gas ceases to exist.

1

5. pH==- log [H+]

pH=- log[ 3.8 x 10-3

]

pH=- 0.58 +3

=2.42

Soft drink is acidic.

1

6. a.Li ion small in size, Carbonate ion big in size, lattice becomes unstable, hence decomposes

at lower temperature.

In the case of Sodium carbonate size of ions similar forms a stable lattice.

b. LiI isCovalent hence soluble in ethanol, KI is Ionic hence Insoluble.

1

1

7. Higher the Tc more easily the gas can be liquefied,greater the intermolecular attraction.

CO2 has stronger intermolecular attraction.

1

1

8. Niobium density=8.55 g/cm3 ,

z = a3 x density x NA /M

a3 =Z M/density x NA=2 x 93/8.55 x 6.022 x 10

23

a=3.305 x 10—8

cm.

In bcc : a√3=4r

r= a√3/4

=3.305 x 10—8

cm x 1.732/4

=1.431 x 10-8

cm.

1

1

9. Benzene- Refer NCERT Text Pg 170 Problem 6.8

Ans: △fH =48.51 kJ/mol.

1

1

10. In B-Cl, Cl more electronegative hence it has a dipole.

BCl3 Structure TrigonalPlanar, the dipoles Cancel, hence zero dipole.

1

1

11. Solvay’s Process-2 NH3 +H2O+ CO2(NH4)2CO3

(NH4)2CO3 + CO2+H2O----2NH4HCO3

NH4HCO3 + NaCl------ NH4 Cl +Na HCO3 .

1

1

12. Packing Efficiency-Simple Cubic Cell

Let edge length of cube = a and radius =r

a=2r

Volume of unit cell= ( 2r)3

8r3

Packing Efficiency= 4/3 ℿ r3 X 100 / 8r

3 =52.4%

1

1

13. a) Water has a bent shape ,sp3 hybridization due to lone pair -bond pair repulsion.

Hydrogenperoxide has a nonplanar structure with peroxide linkage.( Draw Structures)

b) Salts which cause hardness in water are Bicarbonates of Ca,Mg-Temporary hardness.

Chlorides and Sulphates of Ca,Mg -Permanent hardness.

2

1

14. a) Moles of N2=50/28=1.79, Moles of O2=10/32=0.31

b) pN2=nRT/V=1.79x0.082x300/10=4.40 atm.

pO2=0.31x0.082x300/10=0.76 atm.

C) p=pN2+pO2

4.40+ 0.76=5.16 atm.

1

1

1

15. Pressure-Volume Work

△V=lxA( Vf-Vi)

Pressure=Force/Area

Force=Pressure x Area

1

W=Force x distance

= Pex X distance (Compression)

= Pex△ V

When P(external )> P(internal) ( Pex=Pint+dp)

W rev=ʃnRT dv/v

-2.303 nRT log Vf/Vi

1

1

16. O2-

1sס= 21s*ס,

22sס,

22sס* ,

22pzס,

2,ℿ2px

2,ℿ2py

2,ℿ*2px

2,ℿ*2py

2 ( Antibonding M.O put *)

Bond Order=10-8/2=1

Diamagnetic

1

1

1

17. a. O=C=o, Linear Structure, dipoles Cancel.

b. LiCl has Covalent character hence low m.p, whereas NaCl has Ionic bond strong

electrostatic

attraction, high melting point.

c. Size of anion bigger than cation,lattice enthalpy remains constant within the

group.Hydration enthalpy decrease down the group, hence the Solubility will decrease for

metal carbonates.

1

1

1

18. a. Common ion effect- Suppression of degree of dissociation of a weak electrolyte in the

presence of similar type of ions.

b. Negative logarithm of hydrogen ion concentration.

c. Equilibrium in which the reactants and products are in different phases.

1

19. a. Schottky defect-Equal number of opposite charged ions missing. Lowers density of the

crystals.

b. Ferromagnetism-Domains parallel to earth’s magnetic field. Exhibits permanent

magnetism.Eg: Fe,CrO2.

c. Metal excess defect due to extra positive ions at interstitial positions.

Eg: When ZnO is heated, excess metal ions is at interstitial positions, with electrons trapped

in the neighbourhood. These electrons impart yellow colour.

1

1

1

20. Density=0.793 kg/L, molecular mass of methanol=32

Molarity M1= 793/32=24.28 M

M1V1=M2V2

24.28 xV1=0.25 M x 2.5 L

V1=0.025 L.

1

1

1

21. PCl5- sp3d Hybridization-Trigonal- bi-Pyramidal.

P (excited state)-3s1,3p

3,3d

1-Five Hybrid orbitals hybridize with 5- Cl creating a Trigonal-bi-

pyramidal structure.

1

1

1

22. Autoprotylysis of Water

Self Ionization of Water H2O+ H2 O⇋H3 O+ +OH

-

Due to Autoprotolysis water acts as an acid and a base ( Equations)

1

1

1

23. a. Semiconductors-The Conductivities vary between Conductors and Insulators (10-6

to 104

Ohm-1

m-1

)

b. n-type -When Silicon doped with group 15 elements, due to the presence of negative

charge.

c. p-type-When Silicon doped with group 13 elements, due to movement of positive holes.

1

1

1

24. a. Heisenberg’s Uncertainity Rule: It is impossible to determine simultaneously the exact

position and momentum of an electron. Eqn: ∆x .∆P= h/4ℿ.

b. For 3d orbitals, When n=3, l=2, m=-2, -1, 0, +1, +2.

c. Cu+( Z=29) =1s

2,2s

2,2p

6,3s

2,3p

6,3d

10

1

1

1

25. a.Entropy-The disorder or degree of randomness in a system.

∆ S=qrev/T

1

b.Gibbs Energy- The amount of energy available to a system that can be converted to useful

work.

∆G=∆H-T∆S

c. log K= ∆⁰G/2.303RT

= -13.6 x 103 J/mol/ 2.303 x 298.

K= antilog 2.38

=2.4 x 102

1

1

26. a. 2NaHCO3-- Na2 CO3 + CO2+ H2O

b. 2Na( amalgam) + 2H2 O-- 2NaOH +2 Hg + H2

c. Na + (x+y) NH3--[Na(NH3)x]+ +[e(NH3y]

-

d. PbS+ 4H2 O2 --- PbSO4 + 4H2 O

e. CaO + SiO2--- CaSiO3

1

1

1

1

1

27. Ka=[CH3COO-] [H3 O

+]/[CH3 COOH] ( Work out Initial and Final equilibrium)

Ka= cά2

ά=√1.8 x10-5

/0.1

=1.34 x102

2

2

1

THE CHOICE SCHOOL

SECOND TERM EXAMINATION 2018-19

REVISION QUESTION PAPER

Time: 3Hrs. PHYSICS Marks: 70

General Instructions

1. All questions are compulsory. There are 27 questions in all.

2. This question paper has four sections: Section A, Section B, Section C, and

Section D.

3. Section A contains five questions of one mark each, Section B contains 7 questions

of two marks each, Section C contains twelve questions of three marks each

and Section D contains three questions of five marks each.

SECTION A

1. Why spokes are provided in a bicycle wheel? [1] 2. A solid cylinder is rolling without slipping on an inclined plane. What is the torque

provided by the weight of the cylinder about the centre of mass of the cylinder? [1]

3. Calculate the work done by a car against gravity in moving along a straight horizontal road. The mass of the car is 400 Kg and the distance moved is 2 m.

[1]

4. Why are mountain roads generally made winding upwards rather than going straight up?

[1]

5. What are the values of g and G at the centre of the earth? SECTION B

[1]

6. A solid cylinder of moment of inertia 0.625 Kg m2 rotates about its axis with angular speed 100 rad s-1. What is the magnitude of the angular momentum of the cylinder about its axis?

[2]

7. Three particles each of mass m are situated at the vertices of an equilateral triangle ABC of side l. What is the moment of inertia of the system about the line BX perpendicular to BC in the plane of the triangle? B C Y

[2]

8. Suppose there existed a planet that went around the sun twice as fast as the earth. What would be its orbital size as compared to that of the earth?

[2]

9. How does the kinetic energy of a body change, if the momentum is doubled? [2] 10. Two masses of 5 Kg and 3Kg are suspended with the help of inextensible strings of

negligible mass as shown in figure. Calculate T1 and T2 when the whole system is going upwards with an acceleration of 2 m s-2.

[2]

T1 5 Kg T2 3 Kg

11. j 12.

13.

How does the angle of minimum deviation of a glass prism vary, if the incident violet light is replaced by red light? Give reason. A biconvex lens made of a transparent material of refractive index 1.5 is immersed in water of refractive index 1.33. Will the lens behave as a converging or diverging lens? Give reason.

[2] SECTION C Define angle of repose and show that the coefficient of limiting friction is equal to tangent of angle of repose. Hence show that angle of repose is equal to angle of friction. [3]

[2]

14. State (i) theorem of parallel axis and (ii) theorem of perpendicular axis. [3] 15. Show that the vector A = - 6 I – 9 j – 12 k and B = 2 I – 3 j + 4 k are parallel to each

other. [3]

16. What is centre of mass? Write the expression for its position in two particle system. Why does a solid sphere have smaller moment of inertia than a hollow cylinder of same mass and radius about an axis passing through their axes of symmetry?

[3]

17. State and prove law of conservation of momentum. A nucleus is at rest in the laboratory frame of reference. Show that if it disintegrates into two smaller nuclei, these products must move in opposite directions.

[3]

18. Find the expression for escape velocity of earth. [3]

19. State Kepler’s laws of planetary motion. [3]

20. State the law of principle of moments. Write the expression for mechanical advantage. [3]

21. What is meant by a positive work, negative work and zero work? Illustrate your answer with example?

[3]

22. Define orbital velocity. Derive an expression for the orbital velocity of a satellite revolving around a planet.

[3]

23. Show that Newton’s first law and third law of motion are contained in the second law. [3]

24. State work-energy theorem. A force F = I + 5 j + 7 k acts on a particle and displaces it through S = 6 I + 9 k. Calculate the work done if the force is in Newton and displacement in metre.

[3]

SECTION D

25. (i) Show that for same change in acceleration due to gravity, the depth to which a body is to be taken is twice the height. (ii)An artificial satellite is going round earth, close to its surface. Calculate the time taken by it to complete one round. Take radius of earth = 6400 Km and acceleration due to gravity = 9.8 m s-2.

[5]

26. Differentiate elastic and inelastic collision. Show that in an elastic collision, relative velocity of approach before collision is equal to relative velocity of separation after collision. Prove that bodies of identical masses exchange their velocities after head-on collision.

[5]

27. (i) Define moment of inertia. (ii) On what factors does the moment of inertia depend? (iii) About which axis of a body is its moment of inertia the least? (iv) A non uniform bar of weight W is suspended at rest by two strings of negligible weight as shown in the figure. The bar is 2 m long. Calculate the distance d of the centre of gravity of the bar from its left end.

[5]

xxxxxxxxxxxxxxxxx

PHYSICS- ANSWER KEY

1. To increase moment of inertia even when the mass is small. This ensures uniform speed.

1

2. Zero. Because of line of action of the weight pass through the centre of mass.

1

3. Zero because = 90 1

4. F = R = m g cos = force of friction is the angle made by the slope. If is small, F is large and there is less chance of skidding. If the road is straight up, will be large.

1

5. g = 0 G = 6.67 x 10-11 N m2 Kg -2

1

6. Angular momentum = I = 0.625 x 100 = 62.5 Kg m2 s-1

1 1

7. I = m x0 + m x (l/2)2 + m l2 = (5/4) m l2

1 1

8. [ TP / TE ]2 = [ rP / r E ]3 TE = 1 year, TP = ½ year = 0.5 [ 0.5 / 1 ]2 = [ rP / r E ]3 RP = r E (0.5 )2/3 = 0.63 AU

1 1

9. Kinetic energy = p2 / 2m ( 2p )2 / 2m = 4 ( p2/2m)

4 times

1 1

10. T1 = ( M +m ) ( g+ a ) 94.4 N

T2 = m ( g+a ) = 35.4 N

1 1

11. Decrease

Refractive Index of violet is more than red / wavelength of violet is less than red.

1 1

12. 1/f =( n2/n1 -1)(1/R1 -1/R2)

F is = + ve

1 1

13. Angle of repose

1

Figure

Tan =

=

½ ½ 1

14. Statement

figure

(1 +1 ) ( ½+ ½)

15. If parallel, = 0

A X B = 0

= I ( 36-36 ) + j ( -24 + 24 ) + k ( 18 -18 ) = 0

½ ½ 2

16. Centre of mass

Expression

I = m I r i2 , for solid cylinder ri is small

1 1

17. Statement

Proof

0 = m v + M V

M v = - M V

1 1 ½ 1/2

18. Figure

F = G M m / r 2

Potential energy = - G M m / R

Kinetic energy = (1/2) m ve2

Ve = 2 RG

½ ½ 1 1

19. Statement with figure

1+1+1

20. Statement with figure

Expression for mechanical advantage

1 +1 1

21. Positive work with example

Negative work with example

Zero work with example

1 1 1

22. Definition

Figure

derivation

1 1 1

23. F = ma

In the absence of external force, F= 0 , a = 0 ( first law )

FAB = d/dt( PA ) FBA = d/dt ( PB )

FAB + FBA = d/dt ( PA + PB )

In the absence of external force, F= 0

FAB = - FBA ( Third law )

½ ½ 1/2 ½ ½ ½

24. Statement

W = F . S

= 6 + 0 +63 = 69 J

1 1

25. (a) Radha takes care of things and has concern for others. Practical in finding the solutions to problems.

(b) When the wheel is rolling, the angular momentum is conserved. However, due to frictional force, it continues to decrease. Thus, the wheel can stay upright on its rim only for a certain interval of time. In the stationary position, the wheel falls due to unstable equilibrium.

1 +1 1 +1

26. ( a) Figure

½

g h = [ 1- (2 h / R )] g

g d = [ 1- ( d / R ) ] g

g h = g d

d = 2 h

( b) vo = g R

T = 2 R / vo = 5079 sec

½ ½ ½ ½ ½ 1 1

27. Difference

Proof with figure

m1= m2 , u 1 = v2 u2 = v1

1 2 2

28. Definition

Mass of the body, position and direction of axis of rotation and shape of the body.

Moment of inertia is least about an axis passing through the centre of mass of the body.

T1 sin 36.9 = T2 sin 53.1---------(1)

T1 cos 36.9 + T2 cos 53.1 = W---------(2)

(T1 cos 36.9 ) d = ( T2 cos 53.1 ) (l-d) --------(3)

(3)/ (1) d cot 36.9 = (2-d) cot 53.1

1.332 d = 0. 7508 (2- d)

d = 0.72 m

1 1 1 ½ ½ ½ ½

THE CHOICE SCHOOL

SECOND TERM EXAMINATION 2018-19

REVISION QUESTION PAPER

Time: 3Hrs. ECONOMICS Marks: 80

SECTION A

1. If a firm’s production department data says that TVC for producing 8 units and 10 units of

output is Rs. 2500 and Rs. 3000 respectively, MC of the 10th unit will be

a) Rs. 100 b)Rs. 150 c) Rs. 500 d) Rs. 250 (1)

2. Which of the following can be referred to as ‘ point of satiety’?

a) MU is negative b) TU is rising

c) MU is zero d) TU is falling (1)

3. Ceteris Paribus, if the government provides subsidies on electricity bills, what would be the

likely change in the market demand for desert coolers? (1)

4. State any 2 central problems under ‘ problem of resource allocation’ (1)

5. Define Positive Economics. Give examples. (1)

6. State the meaning of ‘quantity demanded of a commodity. (1)

7. Mention any one assumption for the construction of the curve that shows the possibilities of

potential production of 2 goods in an economy. (1)

8. When is a consumer said to be rational? (1)

9. Using appropriate schedules briefly describe he determination of market equilibrium. (3)

10. State the behavior of Marginal physical product, under Returns to a factor. (3)

11. A consumer consumes only one good. The MU from the good is 60 utils and its price is Rs. 7 per

unit. Indicate whether the consumer is at equilibrium or not if MU of money for the consumer is

6 utils. What should he do to attain equilibrium? (3)

12. ‘Supply curve is the rising portion of MC curve over and above the minimum of AVC curve’ do

you agree? Support your answer with valid reason. (3)

13. Recast the following cumulative frequency table into the form of an ordinary frequency

distribution and determine the value of the median. (4)

No of Days Absent

No of Students

Less than 5 29 10 224 15 465 20 582 25 634 30 644 35 650 40 653 45 655

14. What happens to the demand for a good when the consumer’s income changes?

Explain using suitable diagrams. (4)

15. A 5% fall in the price of a good leads to a 10% rise in the demand. A consumer buys 40 units of a

good at a price of Rs.10/unit. How many units will he buy at a price of Rs.12/unit? Calculate.

(4)

16. What are the AFC, AVC, AC of a firm? How are they related? Explain using a diagram.

17. Explain the “interdependence between firms”. Characteristics of Oligopoly Market. (4)

18. X is a normal good for a consumer. Their income increases. Explain its chain of effects in

equilibrium price, demand and supply of X with suitable diagram. (4)

19. Show diagrammatically the condition for consumers equilibrium in the Hicksian analysis of

demand. (4)

20. (a) What is meant by price rigidity under oligopoly?

(b)Elaborate the implication of the conditions of equilibrium of a firm (2+4)

21. A consumer, Mr.Aman is in state of equilibrium consuming 2 goods X and Y, with given prices Px

& Py. Explain what will happen if

(a)MUx/Px is greater than MUy/Py

(b) Py falls. (6)

22.Suppose the DD and SS curves of a commodity X is given by the following 2 equations

simultaneous

Qd= 200-p Qs= 50+2p

(a)Find the equilibrium price and equilibrium quantity.

(b)Suppose that the price of a factor of production producing the commodity has changed,

resulting in the ne SS curve given by the equation

Qs = 80=2p

Analyse the new equilibrium price and the new equilibrium quantity as against the original

equilibrium price and equilibrium quantity. (3+3)

23.Find mode from the following

Wages No of workers

Up to 10 12 20 30 30 65 40 107 50 157

60 202 70 22 80 230

24.(a)Distinguish between shift and rotation of the budget line. (6)

(b)Analyse the effect of a change in the price of Good2 in the consumers budget line and budget set.

***************************

ANSWER KEY

1.250

2.MU is zero

3.Demand for desert coolers will increase.

4. What to produce and in what quantity

How to produce

For whom to produce

(any 2 pts)

5.Branch of economics that concerns the description and explanation of economic phenomena. It

focuses on facts and cause and effect behavioural relationships.

Eg: Govt provided healthcare increases public expenditure

6.That quantity of a commodity which a consumer is willing and is able to buy at a particular price

and a given point of time.

7.Increasing MOC

8. A consumer is said to be rational when he aims at maximizing his utility from the consumption of

a given commodity within his money income.

9.

Price Demand Supply 1 16 4 2 14 6 3 12 8 4 10 10 5 8 12 6 8 14

In the above schedule, the market equilibrium is established at the price of Rs.4.

When the quantity demanded and quantity supplied are equal with equilibrium quantity of 10 units.

10.

I. MPP initially rises to its maximum.

II. MPP then decreases(+ve) to become zero.

III. MPP becomes -ve.

11. A consumer in consumption of a single commodity is at equilibrium when,

Mux/Mum=Px

Mux= 60 units

Pu= 7

Mum= 6

60/6 > 7

So the consumer is not at equilibrium. As MU greater than price , the consumer should increase

the level of consumption.

12.Yes, we do agree with the given statement that the SS curve is the rising portion of the MC

curve over and above the min. of AVC curve. Since no rational producer/seller would like to

supply his O/P to the market if he is unable to recover his

VC as it would lead to losses between the range of min. of MC and min of AVC.

13.

Class Frequency Cummulative Frequency

0-5 29 29 5-10 195 224 10-15 241 465 15-20 117 582 20-25 52 634 25-30 10 644 30-35 6 650 35-40 3 653 40-45 2 655

M=N/2th term

=655/2 = 327.5th term

Class = 10.15

M= lo+ (N/2-CF/f)*h

= 10+ (327.5-224/241)*5

=12.14

14. 2 Types of Goods

1.Normal Good: There is a diire t relationship between income of consumer and dd for normal

good,i.e, if income increases dd increases or income decreases.

Increase in Income(diagram)

Decrease in income (diagram)

2.Inferior Good

Inverse relationship between income of consumer and dd.

Increase in Income(diagram)

Decrease in Income(diagram)

15.

Ed= % in Qty DD / % in P

= 10/5 = 2

P=10/unit P1=12/unit

P= P1- P = 12 – 10 = 2/unit

Q= 40 Q1 = ? Q= Q1- 40

Ed = P/Q * P/Q

=10/40 * Q*P

=10/40* Q1-40/2

-16 = Q1 – 40

Q1 = 40-16

=24 units

16.AFC – per unit FC of production

AVC – per unit VC of production

AC per unit TC of production

AC curve will always be above the AVC because AC at all levels of O/P includes both AVC and AFC.

AVC reaches its min.pt. at level of O/P lower than that of AC because when AVC is at its min.pt. AC

is still falling because of falling AFC.

As output increases the gap between AC and AVC curves decreases but they never intersect each

other. It happens because the vertical distance between them is AFC which can never be zero.

Diagram

17. In an oligopoly market, there are small no of big firms. Accordingly, there is a high degree of

mutual interdependence. Implying that price and output policy of one firm has significant impact on

the price and output policy of the rival firms in the market. When one firm lowers its price, the rival

firm may also lower the price. And when one firm raises its price, the rival may not do so. It is

because of the interdependence that it becomes very difficult to estimate change in firms sales

caused by change in price. Implying that a precise relationship between price and sale cannot be

established or that the firms demand curve cannot be drawn.

18. (Diagram)

Increase in income results in increase in demand for the normal good. DD curve shifts to D1D1. There

is excess demand(equal to AB) at OP price. The buyers compete. Price starts rising. Demand starts

falling(contraction) and supply starts rising(extension). These changes continue till price reaches

OP1. At this price dd1=SS. Market is in equilibrium again at a higher price and equilibrium qty rises to

O

19. According to IC Approach, consumers equilibrium is determined if the following 2 conditions are

satisfied:

MRSxy = Px / Py

MRSxy is declining

MRSxy is the rate at which the consumer is willing to sacrifice Y to obtain one more unit of X.

(diagram)

This we can say that, “A consumer is in equilibrium at a point where budget line is tangent to IC”

Slope of IC= Slope of Budget Line

MRSxy=Px/Py

In the diagram, equilibrium is at pt E, where the budget line touches the highest attainable IC2. within

the consumers budget. Bundles on the IC3 are not attainable within the budget.

Bundles on the IC, (i.e, pts F&G) are lying on a lower IC which implies lower level of utility.

Therefore, E is a point of consumers equilibrium, where he maximises total satisfaction.

If MRSxy > Px/Py implies that the consumer is willing to sacrifice one more unit of Y than what

market requires. This induces consumer to buy more of X . MRSxy starts declining till MRSxy=Px/Py.

If MRSxy<Px/Py, consumer is willing to sacrifice less units of Y than what the market requires. He

decreases consumption of X. MRSxy begins to rise. I continues till MRSxy=Px/Py.

20.(a) Price rigidity is the price of the product fixed after deliberations and negotiations by

oligopolistic firms to which they generally stick with a view to avoid any sort of price war.

(b) Firm’s equilibrium is that level of O/P where its profits are maximized.

Conditions of firms Equilibrium

(a) MR = MC

(b) MC must be rising

The conditions implies that the slope of rising MC curve is equal to the slope of MR curve.

(Diagram)

Implication of the conditions lies in the fact beyond the equilibrium point. MC would become

greater than MR, i.e, for each additional unit sold beyond Output OQ the cost of producing that

unit will be more than the revenue generated by the unit.

21.(a) If Mux/Px >MUy/Py,then it means that satisfaction of Mr.Aman derived from spending a rupee

on Good X is greater than satisfaction derived from spending a rupee on Good Y.

Mr.Aman, will reallocate his income by substituting Good X for Good Y. As consumption of Good X

increases the MU derived from it goes on diminishing and reverse proposition occurs for Good Y,this

process will continue till Mux/Px = Mux/Px.

(b)If Py falls, Mux/Px < MUy/Py, then it means that satisfaction derived from spending a rupee on

Good X is lesser than thesatisfaction derived from spending a rupee on Good Y.

Mr.Aman will reallocate his income by substituting Good Y for Good X. As the consumption of Good Y

increases, the MU derived from it goes on diminishing and reverse proposition occurs for Good X, this

process will continue till

Mux/Px=MUy/Py

22.(a) We know that equilibrium price and quantity are achieved at

Qd= Qs

200-p=50+2p

Therefore, equilibrium price p=50

Equilibrium Qty q=200-50 = 150 units

(b)If the price of factors of production has changed, then under the new conditions,

Qd=Qs

200-p=80+2p

-3p = - 120

Equilibrium p = 40

Equilibrium quantity = 200-40 = 110 units

Thus as the equilibrium price is decreasing the equilibrium qty is increased.

23.

Class Frequency

0-10 12

10-20 18

20-30 35

30-40 42

40-50 50

50-60 45

60-70 20

70-80 8

Z= lo+ (f1 -f0 / 2f1-f0-f2) * h

=46.15

24. Shift in the budget line

Occurs when there is a change in the income of the consumers.

Increase in the income will lead to shift in the Budget Line outward.

Decrease in income will lead to shift in Budget Line inward.

Rotation of Budget Line

Rotation of B.L occurs when there is change in price of the commodity X&Y.

Change in price of commodity on X axis.

(diagram)

Change in price of commodity on Y axis

(diagram)

THE CHOICE SCHOOL

SECOND TERM EXAMINATION 2018-19

REVISION QUESTION PAPER

Time: 3 Hrs. ENGLISH Marks:80

SECTION A - READING

1. Read the following passage and answer the questions that follow: 12

“It is impossible to think about the welfare of the world unless the condition of women is improved. It is impossible for a bird to fly on only one wing.” — Swami Vivekananda

Women are not born, but made. What better than India to exemplify this statement by Simone de Beauvoir. With the whole world celebrating International Women’s Day with great pomp and show, it would be only apt to analyse the position and space Indian women occupy today, and comparing it to the time 60 years ago when the country had just gained independence. With women participating in nationalist movements, to being pushed into the domestic household space, to their resurgence as super-women today, women in our country have seen it all.

There have been innumerable debates about gender in India over the years. Much of it includes women’s positing in society, their education, health, economic position, gender equality etc. What one can conclude from such discussions is that women have always held a certain paradoxical position in our developing country.

While on one hand, India has seen an increased percentage of literacy among women, and women are now entering professional fields, the practices of female infanticide, poor health conditions and lack of education still persisting still continue. Even the patriarchal ideology of the home being a woman’s ‘real domain’ and marriage being her ultimate destiny hasn’t changed much. The matrimonial advertisements, demanding girls of the same caste, with fair skin and slim figure, or the much criticised fair and lovely ads, are indicators of the slow changing social mores. If one looks at the status of women then and now, one has to look at two sides of the coin; one side which is promising, and one side which is bleak.

When our country got its independence, the participation of women nationalists was widely acknowledged. When the Indian Constitution was formulated, it granted equal rights to women, considering them legal citizens of the country and as an equal to men in terms of freedom and opportunity. The sex ratio of women at this time was slightly better than what it is today, standing at 945 females per 1000 males. Yet the condition of women screamed a different reality.

They were relegated to the household, and made to submit to the male-dominated patriarchal society, as has always been prevalent in our country. Indian women, who fought as equals with men in the nationalist struggle, were not given that free public space anymore. They became homemakers, and were mainly meant to build a strong home to support their men who were to build the newly independent country. Women were reduced to being second class citizens. The national female literacy rate was an alarmingly low 8.6%. The Gross Enrolment Ratio (GER) for girls was 24.8% at primary level and 4.6% at the upper primary level (in the 11-14 years age group). There existed insoluble social and cultural barriers to education of women and access to organised schooling.

(Extract from ‘Here’s ow the status of Women has changed in India since 1956 till date by Tanima Banerjee.)

1. On the basis of your understanding of the passage, answer the following questions by choosing the most appropriate option. (1 x 4=4)

(a) The writer says that women have seen it all because

i. They participated in nationalist movements. ii. They were pushed into household space iii. They have become superwomen today iv. All of the above

(b) Pick one statement which brings out the paradoxical nature of women’s position in society today:

i. they are entering professional fields and are becoming literate ii. they lack education and female infanticide is still rampant iii. they are still victims of patriarchal mindset iv. while they are allowed to enter professional fields they are still victim of

patriarchal mindset

(c) The Indian Constitution did not ensure

i. That women get equal rights ii. That they were considered equal to men iii. That the sex ratio would be 945 females to 1000males iv. That they were legal citizens of India

(d) Despite provisions of the constitution

i. Women were relegated to the household ii. Women were not allowed free space iii. Women were dictated by patriarchy iv. All of the above

Answer the following questions as briefly as possible.

(e)What is the patriarchal ideology about women?

(f)What are the areas of concern about women?

(g)Who said that ‘Women are not born, but made’.What did he mean by it?

(h)Cite one example to show that our social mores are changing very slowly.

(i)What are the ‘insoluble barriers’ to women’s education?

(j)Find words from the passage that mean the same as (1 x 3=3)

i. recognized (para 3) ii. Ironic, absurd (para 2)

2. Read the passage given below:

One of nature’s most useful gifts to man is the large variety of giant grasses called bamboo. The

tropical islands of Indonesia, foothills of Himalayas, moist lands of middle Asia and Japan are the

main areas where bamboo grows. Some varieties of bamboo are short, around eight to ten feet in

height, while others are stronger and reach a height of almost 100 feet. The largest bamboo

species is about 120 feet in height and is known to grow about six inches a day. Their feathery

heads and spear shaped leaves give a majestic appearance to the clump. Bamboo often grows in

clumps of almost a 100 bamboos in a single cluster. It grows well in rich loamy soil and should be

sheltered from strong winds and given enough water. It is described as the hungry plant, which

repays generously.

All varieties of bamboo have hollow, fibrous and hard stems. The hollowness and springiness of

the bamboo makes it very useful. The stem is divided into air and watertight compartments by

diaphragms at the nodes. Short sections of the stem can be used as cups, jugs, salt cellars and even

pans to cook food and make tea. Tea can be boiled or food can be cooked in these pans; the food

gets cooked before the fire can burn through the green outer skin.

Lengths of bamboo, with all the compartments punched out, can be used as water pipes to irrigate

fields. Bamboo is used for making fence against wild animals and warriors and hunters use it to

make arrows. It is also used in construction of all kinds of agricultural and domestic equipments.

Bamboo strips are woven into cages, chairs, beds and other pieces of furniture, fine varieties of

paper, umbrella and walking sticks. Sandals and fishing rods are also made from this wonderful

gift of nature. Construction engineers find bamboo extremely useful. The strength of the bamboo

has been compared with that of soft steel. It makes a firm reinforcement for concrete and is

commonly used to make a scaffolding, while constructing a building.

A strong bamboo suspension bridge can bear mules, transport, or be used for making houses. Split

bamboo is woven into attractive designs for walls and floors and a leafy thatch. Nails are not

usually used in forest homes, so strong cords made from outer skin of bamboo are used for tying

ends. Bamboo jetties are also made close to the river, where women sit and wash clothes. The

outer skin of bamboo is split in to very thin strings which are woven into waterproof hats, capes,

baskets, bags and small caskets.

Decorative stems of tobacco pipes are made from roots of bamboo. Bamboo weirs which let water

through but not fists, bamboo fish traps, diving boards, rafts and boats are also made of bamboo.

The grain of bamboo is used as food by the Chinese. Young bamboo shoots are a delicacy and

succulent curries and soups are made from them.

The disadvantage of bamboo arises when it flowers. There is a very common saying “When

bamboo flowers, men will starve”. The bamboo flowers every few years, varying from species to

species. The flowers shed millions of seeds on the forest floor. This attracts rats in great numbers,

which eat the seeds and also devour the crops that come their way, at times causing famine.

2.1 Make notes on the passage given above in points only using abbreviations and short-forms.

Supply a suitable title. 5

2.2 Write a summary of the above passage in 80 words. 8

SECTION B WRITING

3. You wish to rent a 500sq ft. premises to start a business. Draft a suitable advt. to be put in the

classified section of a leading daily with details of location, rent and other details. You are

Akash/Anitha Sharma. (4)

4. You are Anushka/Amit staying at A-23/1, Ashok Nagar, Delhi. You find it disturbing that despite

a ban on smoking in public places,people are seen smoking in cities. It shows a lack of civic sense

in the people. Write a letter to the editor of a national daily expressing your concern about the

indifference of people to their own as well as other’s health. It is harmful to the environment too.

Suggest some ways to sensitize city dwellers about safe environment. (6)

5. You are actively involved in the campaign against the use of crackers during Diwali. In order to

promote the campaign you have decided to write an article for a magazine. Write the article in

about 150-200 words (10)

6. There is an error in every line. Find the error and write the correct answer in the space

provided.

e.gRights and duties are too sides of the Ans- too-two

same coin. On can’t exist without the other. (a)………………………………..

Duties without rights are merely slavery. Similarly, (b)…………………………………..

rights without duty amount to lawlessness. In (c) ……………………………………

some civilized society, rights and duties must go (d)………………………………..

side by side.But in today world, everybody talks (e)………………………………….

much of his rights. There is a great hue and cry (f)………………………………….

if our rights are infringed. But nobody seem to bother (g)………………………….

much about his duties. That is what there is a great (h)…………………………………

unrest in our present-day life. 4

7. Rearrange the jumbled words to make meaningful sentences . 3

Bamboo is a versatile plant.

(a) /a /commercial / are /astonishing / the /bamboo / uses of /

(b) /about / into / India / are /1.5 / turned/million / tonnes / paper/in /annually/

(c) / bamboo / Columbia/structures / used /house /is /with /in / in/covered/plaster/

8. Change the voice as required 3

(a) They sold all the newspapers by 8 a.m.

(b) All the relief materials were distributed to the needy.

(c) The exams are being written by them in the room.

SECTION –C LITERATURE

9. Answer with reference to context: (1 x 3=3)

Eternal I rise impalpable out of theland and thebottomless sea,

Upward to heaven, whence, vaguely form’d, altogether changed, and yet the same,

I escendtolave the droughts, atomies, dust-layers of theglobe,

And all that in them without me were seeds only, latent, unborn:

i.Where does the rain originate from?

ii.Does the earth change its form and quality in the sky?

iii.What does the word ‘lave’ in line 3 mean

10. Answer in 30-40 words: (3 x 3=9)

i. What reference did Mr. Koch give to Albert regarding his wish to join a collge in Italy?

ii. Do you think that the poet got answers to his questions? How?

iii. How do Shahid and the fwrither react to the knowledge that Shahid is going to die?

11. Describe the role of Mrs. Fitzgerald in the play. Answer in 120-150 words (6)

12. Explain the concept of sustainable development propounded by NaniPalkhivala in the

essay.Answer in 120-150 words (6)

13. Describe the efforts made by the archaeologist, Howard Carter, to solve the mystery of King

Tut’s death. (6)

*************************

ENGLISH ANSWER KEY

SECTION A : READING

1. 12 (a) iv. all of the above 1

(b) iv. while they are allowed to enter professional fields they are still victim of patriarchal mindset

1

(c) iii. That the sex ratio would be 945 females to 1000males

1

(d) iv. all of the above 1

(e) The patriarchal ideology regarding women is that home is women’s real..and marriage is her ultimate destiny.

1

(f) The areas of concern about women are their education,, health, economic ..and gender equality

1

(g) Simone de Beauvoir said this. He meant that women do not have …own. They are led by ideologies created for them.

1

(h) The matrimonial advertisements demanding girls of ….skin and slim figure, or the much criticised fair and lovely..the slow changing social mores

1

(i) The insoluble social and cultural barriers to education of women…organised schooling are the patriarchal ideas which earmarked women and push them into the household.

2

(j) i.acknowledged ii. Paradoxical 2

2 Note Making 5

2.1 Format-1 Content-3 Expression-1

2.2 Summary 3

SECTION B

3 Advertisement 4 Format-1

Content-2 ((centrally located, fully furnished, near metro station, car parking available-any relevant content-minimum 4)) Expression-1

4 Letter to Editor 6

Format-1 Content-3 (problem- increase in number of smokers,

smoking in public Effect- harm to one’s own health, harming other’s health, poor civic sense Solution- stronger measures, heavier fines, good education in civic sense) Expression-2

5. Article 10

Format-1 Content-4 (problem- use of crackers- noise and air pollution, health problems Solution- strong campaigns, educating public on dangers, investing in green technologies for better crackers ) Expression-5

6. 4

(a) On-one ½ (b) Merely-mere ½

(c ) Duty-duties ½

(d) Some-any ½ (e) Today-today’s ½

(f) Of-about ½ (g) Seem-seems ½

(h) What-why ½

7 3

(a) The commercial uses of a bamboo are astonishing. 1 (b) In India, about 1.5 million tonnes are turned into paper

annually. 1

(d) In Columbia, bamboo used in house structures is covered with plaster.

1

8 Change the voice 3 (a) All the newspapers were sold by 8 a.m. 1

(b) Volunteers distributed all the relief materials to the needy.

1

(c) They are writing the exams in the room. 1

9 i From the vast land and the deep sea

ii It changes form but not its quality.

iii To quench the thirst/to bathe

10 9

i Reference of recommendation- admission to college-reason- Einstein brilliant in Maths

C-2 E-1

ii No-remained puzzled-but understood it was part of growing up

C-2 E-1

iii Accepted it stoically – almost jocularly-wanted the author to write his obituary

C-2 E-1

11 Main protagonist- neighbour- suggested resolution to

Mrs.Pearson’s problem-used her skills- instrumental in helping Mrs.Pearson’s overcome her problem-

C-4 E-2

12 Earth belongs to all generations- resources belong to all-all resources not renewable- must be used responsibly- if resources finish mankind will perish

C-4 E-2

13 Carter first discovered the tomb – couldn’t take out the coffin- had to chisel it away- filled with precious jewels- if he hadn’t done that thieves would have taken it-did damage the mummy in the process.

C-4 E-2

THE CHOICE SCHOOL

SECOND TERM EXAMINATION 2018-19

REVISION QUESTION PAPER

Time: 3 Hrs. HOME SCIENCE Marks: 70

1. What do you understand by decision making ? 1

2. What is babbling ? At what age does a child start to babble ? 1

3. What is asepsis ? 1

4. Name 2 factors that influence physical development of a child ? 1

5. What are the three dimensions of colour ? 1

6. What colours do you use to make

a. A small room look bigger

b. A long narrow room look proportionate . 2

7. Define the following

a. Health

b. Disease

c. Immunisation

d. Emotional development

8. State 2 indicators each by which a mother knows that her 4 month old child has normal motor

and social development . 2

9. Explain the importance of evaluation in the management process ? 2

10. Define fatigue? Differentiate between physical and psychological fatigue.

2

11. How is immunity developed ? 2

12. What is parboiling ? How does it improve the nutritive value ? 2

13. Differentiate between roasting and sautéing ? 2

14. Name the different types of resources with suitable examples for each. 2

15. Explain briefly the different methods of simplifying work at home. 2

16. What do you mean by blanching ? Write the principles underlying this method of

preservation ? 2

17. Give a brief account of the factors that need to be kept in mind while making a time plan.

2

18. Differentiate between reflex smile and social smile. At what age does these occur ?

2

19. What is fermentation ? Explain its role in enhancing the nutritive value of food with examples .

3

20. Explain the factors responsible for spreading infection with examples. 3

21. What are the reasons for cooking food ? 3

22. What ICDS stand for ? What is the package rendered by ICDS ? 3

23. Define food preservation. Write any 2 principles of preserving food.? 3

24. Write the disease caused by having contaminated food from a roadside vendor . Write 4

symptoms of the disease. 3

25. Define balanced diet. What is the effect of cooking on carbohydrates and proteins.

3

26. Differentiate between the dietary contribution of fruits and vegetables group and milk and

meat group. 4

27. Your friend was bitten by a dog. What first aid would you give her ?

4

28. A child has developed low grade fever accompanied with weakness and foul breath. Identify

the disease he is suffering from and write three other symptoms along with prevention and

care . 5

29. Suggest ways to minimize the loss of nutrients losses during preparation and cooking of food

to a young householder . 5

*****************************

ANSWER KEY

1. The identification of an action from several causes of action

2. Child produces double flat sounds like baba, mama , tata etc. Such sounds produced by the

baby is referred to as babbling. Age- 6-9 months

3. Asepsis means removal of consitions that make the food septic and spoilt

4. Heredity and environment

5. Hue, value, intensity

6. a. light and natural colours – pastal shades, white( b. ) when warm colours are given to two

adjacent alls eg. Red, yellow

7. a. success experienced by an organism in its effort to respond adaptively to environmental

challenges

. b. failure experienced by an organism in its efforts to respond adaptively to its

environment

c. The process of developing immune bodies or antibodies in an individual by artificially

introducing controlled number of germs into the body

d. Ability to control emotions and express them in ways acceptable to the society

8. Motor- child starts to sit with support, complete head control, hold the things

Social – start recognizing parents, way of strangers

9. It helps in assessing progress in every stage of management process

It provides checks and tests to know that the plan is turning out as planned

Helps to check if any modifications needed

Helps in judging the strengths and overcoming weakness of the entire process

10. Fatigue – feeling of extreme physical and mental tiredness

Physical – energy stored in the form of glycogen. During muscular activity , oxygen you

breathe in combines with glycogen to give energy. These activities also gives rise to waste

products like lactic acid and carbon dioxide. These waste materials in the blood give rise to

fatigue. During rest and sleep, oxygen replaces these waste products and feel refreshed .

Psychological – one may feel exhausted even though the capacity to do work is there. This

often results due to boredom or frustration and is referred to as psychological fatigue

11. Microorganism or pathogens contain antigens that stimulate the production of antibodies.

Weakened or dead germs when introduced into the body stimulates the body to produce its

own antibodies without actually having the disease

12. Parboiling - putting the food in boiling water to denature the enzymes naturally present in

foods. The B group vitamins present near the skin or peel penetrate further into the food. Eg.

Peas, parboiled rice

13. Roasting – the meat is browned or seared at high temperature on direct fire and cooking

completed at low temperature . This gives a rich dark colour , forms a protective covering

around it that keeps the flavor in .

Sautéing – cooking that involves very little oil or fat. Food is tossed in hot fat and cooking

completed over low heat. Food is frequently turned or stirred . A little water used for hard and

tough foods

14.

HUMAN NON HUMAN TYPE EXAMPLE TYPE EXAMPLE Time A second, a

minute, an hour etc

Money Income, saving, investment

Energy Energy required for studying

Material goods Car, computer, hat, bag

Knowledge Understanding various informations

Property House, land, shop

Skills or abilities Skill in dancing, tailoring

Community resources

Fuel, park, electricity, hospitals etc.

Attitudes Willingness to accept a challenge

15.

Work simplification is the peocess of reducing the amount of time and energy spent on a particular

job . The various ways of simplifying work are as follows;

1.CHANGE IN HAND AND BODY MOVEMENT

a.Eliminating all the extra movements – considerable amount of time and energy can be saved

by eliminating unnecessary movements

Eg. Use a tray to carry spoons, forks , glasses, plates etc. for laying the table instead of

carrying each item individually.

b.Improving the sequene of work

Better sequencing and dovetailing of activities reduce the expenditure of time and energy

in a particular task.

Eg. Ironing and teaching the child

a. Developing skills at work

Practice makes a man perfect, holds good at developing skill at work.

Eg. When you learn to stitch for the first time, you tend to spend more time and energy

than when become skilled in the art of stitching

b. Using correct posture

Use of correct posture while doing a work ensures less expenditure of energy where as

poor posture may result in lower efficiency , increased fatigue and problems like backache.

Eg. It is better to hang clothes while keeping the bucket on the comfortable height rather

than keeping it on the floor and bending each time

2. CHANGE IN WORK

We can do more work in lesser time by dovetailing related activities. Dovetailing is simultaneously

carrying out more than one activity.

Eg. Ironing of clothes and supervising children studying can be done at the same time

3. CHANGES IN WORK PLACE, STORAGE SPACE AND EQUIPMENT

This emphasizes adequate organization of the work place , storage space and equipment. For

organizing space for such purpose, care must be taken to

keep in mind that equipment placed must be within the reach of the worker.

Eg. The plate stand should be fixed by keeping in mind the height of the worker. The worker must be

able to place and take out the plates without having to unduly stretch .

Use of labour saving devices also help in reducing the expenditure of time and energy of the

worker.

Eg. Use of peelers, pressure cookers, washing machines, mixers etc

4. CHANGES IN END PRODUCT

Certain norms and traditions are followed by all families. We should aware that change is the fact of

life. Hence, one must take initiative to accept new ideas if they involve saving of time and energy.

Eg. Use of mixer instead of traditional stones are used for grinding

16. Blanching is food in water for a short while to dentaure the enzymes present in it. This

restricts and minimizes the enzyme activity and the food can last longer.

Denaturing enzymes forms the principle of preservation

Eg. You blanch peas before freezing them

17. FOR SAVING TIME:

a. Making up of a time plan is dependent on the help available. For eg. If a working lady

gets enough help from her family members in doing household jobs, her timetable

will also have some time for rest and leisure time activities. If she does not get any

support, her time plan will be quite tight.

b. The task which is accomplished systematically and logically takes less time than

when the work is done in a disorganized way.

c. Much of the time and energy can be saved by dovetailing (combining) 2 or 3

activites at the same time.

d. Use labour saving equipment also helps in saving time.

e. There are certain periods in the plan, when most of the activities are carried out in a

short span of time. This is called peak load period.eg. A working lady has to prepare

breakfast, make packed lunches for all family members, get herself ready and go to

office after sending children to school. One must keep in mind the adequate spacing

of peak load periods in a time plan.

f. It is important to provide periods of rest and relaxation for carrying out the various

tasks effectively.

18. From birth to 3 months , children smile to give exercise to their cheek muscles without

recognizing familiar faces. This is called reflex smile.

In the 3rd month, children starts recognizing familiar faces –this smile is known as social smile

which is regarded as the beginning of social development .

19. FERMENTATION

Process in which naturally prnuesent microorganisms are allowed to bring about desirable physical

and chemical changes by converting them into simpler forms that has increased nutrient availability

Eg. Curd, idli, bread

Advantages of fermentation

Fermented foods are easy to digest and adds variety in texture and flavor

Increase in Vitamin C, thiamine, riboflavin, niacin, folic acid, methionine

Increased availability of iron

20. Air – microorganisms enter by breath. Eg- tuberculosis, measles, diphtheria

Water – consumption of contaminated water eg. Cholera, typhoid

Contact – direct contact eg- diphtheria

Food – consumption of contaminated food eg. Cholera

Insects and rodents – carrier of diseases by biting sick persons and then by biting healthy

person eg. Malaria

21. REASONS FOR COOKING FOOD

1. PHYSICAL AND CHEMICAL CHANGES

a. Cooking changes the texture and colour

b. Improves acceptability of food

c. Potato become sweeter with cooking.

2. IMPROVES DIGESTIBILITY

a. The digestive juice penetrates easily in to the tender grains

b. Ensures maximum utilization of proteins and carbohydrates present in them

3. CHANGES TASTE, FLAVOUR AND PALATABILITY

a. Coking changes the taste of many foods like sweet potatoes

b. Changes in odour, palatability of many foods like fish, meat etc

4. INCREASES NUTRIENT AVAILABITLITY

Few pulses like dals, soyabeans contain trypsin inhibitor which gets destroyed while cooking,

thus increase the nutrient availability.

5. MAKES FOOD SAFE AND INCREASES SHELF LIFE

a. Cooking destroys the bacteria in milk and increases the shelf life .

b. Raw food spoils easily, so various cooking methods improves the storage life of foods. Eg.

Meat is a perishable food, but cooking improves the shelf life

6. PROVIDES VARIETY

Different types of cooking methods like boiling, frying , baking can be used to provide variety.

Eg. Wheat can be eaten as dalia, chapatti, paratha, poori , biscuits, etc

22. Integrated Child Development Scheme

- Supplement nutrition

- Immunization

- Health checkups and referral services

- Nutrition and health education

- Non formal education

23. FOOD PRESERVATION

Food preservation is a state in which food is retained for longer time without being

contaminated by pathogenic organisms or chemicals and without losing optimum qualities of

colour, texture, taste, flavor and nutritive value.

IMPORTANCE/BENEFITS OF FOOD PRESERVATION

a. Easy to store

b. Reduces the wastage of food

c. Add variety to meals

d. Easy to transport

e. Provides nutritionally adequate meals to the family

f. Optimum time utilization of houseworkers and can earn money

PRINCIPLES OF FOOD PRESERVATION

1. Removal of factors contaminating food

2. Removal of temperature that favours food spoilage

3. Removal of moisture, air , suitable pH

24. cholera – loose watery stools, that look like rcie water, vomiting resulting in electrolyte loss,

cramps, extremely thirsty

achieve nutrient intakes as specified by the RDA.

25. BALANCED DIET

A balanced diet can be defined as one which contains different types of foods in such

quantities and proportions that the need for calories, proteins, minerals , vitamins and other

nutrients are adequately met and a small provision for extra nutrients is made to withstand

short duration of leanness.

The balanced diet provides reserves of most nutrients so that one can sustain short periods of

inadequacy without any significant harmful effects.

26. MILK AND MEAT PRODUCTS

Milk is a complete food, but lacks Vitamin C and Iron. The sugar in milk is LACTOSE which

favours the growth of lactic acid bacteria. The protein in milk is lactalbumin and lactoglobulin

Milk contains B group vitamins, like thiamine, riboflavin and pyridoxine which may destroy

by heat and heat and light. So milk has to be stored in cool and covered conditions.

Contains Vitamin A

CURD

Easier to digest than milk. Rich in vitamins

CHEESE

Cottage cheese or paneer is made by curdling the milk with lemon juice or vinegar. Cottage

cheese is precipitated protein with no fat and lactose. It is easily digested

The remaining liquid part during the process of making paneer is known as whey. It is rich in

minerals and milk fat.

PROCESSED CHEESE - High fat content and hence should be avoided by

overweight individuals

CREAM AND BUTTER - rich source of fats and proteins.

MEAT PRODUCTS

Egg, meat, fish contain high biological value proteins

MEAT – contains collagen(fibrous connective tissue), in which gelatin is obtained from

collagen when meat is cooked. Meat is rich in IRON AND PHOSPHORUS

GROUP IV- FRUITS AND VEGETABLES

Mangoes, papayas, peaches- rich sources of carotenes

Orange and citrus fruits- rich in Vitamin C-needed for healthy gums, healing of wounds

Bananas –rich in carbohydrates

LEVULOSE- fruit sugar that is needed in food industry.

Procides roughage needed for regulatory functions

Apple , guava , plums- contain pectin – used for making jams and jellies

Green leafy vegetables are rich in calcium, iron and vitamin A, riboflavin.

Presence of oxalates in green leafy vegetables interferes with the absorption of calcium, amd

magnesium

Vegetables provide variety and attractiveness to a meal

27. wipe saliva from the wound with sterilized cloth

one should save oneself from coming in contact with saliva

wash wound with soap and water

cover with dry sterilized cloth

get medical aid

28. tuberculosis – eakness, loss of weight and appetite, rapid pulse

prevention – isolate, nose and throat secretions should be disposed off

29. STEPS TO MINIMISE LOSS OF NUTRIENTS DURING PREPARATION AND COOKING

1. Wash vegetables before cutting. Do not scrub or over wash.( Water soluble vitamins and

minerals of green leafy vegetables ,pulses and cereals are lost if they are over washed.

2. Cut vegetables and fruits in large pieces. (This checks nutrient loss due to exposure.)

3. Do not over peel (If vegetables are over peeled, vitamins found just below the skin are lost.

Vitamin B&C of potatoes are lost when it is peeled and cooked )

4. Do not use excessive water for cooking and then drain the excess.(If stock is drained away as

is commonly done with the cooking of rice in Kerala, Vitamin B is lost.)

5. Do not use cooking soda.

(Cooking soda is mostly used to cook pulses like rajmah & channa for faster cooking. But in

the process, Vitamin B is destroyed.)

6. Do not put food in cold water and then cook.( Put the food in boiling water)

7. Do not overcook,

8. Do not cook uncovered.(Vitamin B &C are water soluble and can easily evaporate along with

water vapour, if the container is not covered )

9. Make use of leaves of green vegetables like radish, onion

10. Serve hot food immediately after cooking. Do not cook much before serving.

THE CHOICE SCHOOL

SECOND TERM EXAMINATION 2018-19

REVISION QUESTION PAPER

Time: 3 Hrs. INFORMATICS PRACTICES Marks: 70

I.

a. What is the significance of an input unit ? 1

b. What is System Software ? 1

c. What is the use of Disk Defragmentor ? 1

d. What is OMR? 1

e. Distinguish between RAM and ROM. 2

f. What is the difference between a compiler and an interpreter ? 2

g. How is a Firewall useful in securing a network? 2

II.

a. Define the terms : variable and data type 1

b. Which data type is used to store true or false values in Java? 1

c. What is the difference between a getText() and getPassword() methods? 1

d. What is the purpose of a break statement? 1

e. While working in Net beans, Ms. Sonia has designed a login page where she wants to display

“Welcome” or “Try again” message depending on the password entered by the user in text field

named „jTexField1‟. If password entered is “India”, „Welcome‟ message should be displayed

otherwise „Try again‟ message should be displayed. Help her in choosing more appropriate statement

out of 'if statement' and 'switch statement'. Also write the reason for your choice. 1

f. Write Java code to assign the value 10 to variable x and store its square value into another variable y.

1

g.Write one similarity and difference between combo box and list box 1

h.Which property of a radio button is used to make it mutually exclusive? 1

i. A phone number, consisting of 10 digits, is stored in a string variable strphone. Now it is required to

store this phone number in a Long type variable lngphone. Write a java statement to do this 1

j. What will happen in a do.. while statement if the condition evaluates to false in the first iteration?1

III.d

a. What will be displayed in jTextArea1 after executing the following statement?

jTextArea1 .setText( " The Choice School \ t Tripunithura \ n Annual Exam \ t 2018-19 " ) ; 1

b.If x=300 and y=700 then what will be the output of the following expression? 1

If( y - x <500)System.out.println(150);

System.out.println(50);

c. What are the values of i and n after the following code is executed? 1

int i = 10;

int n = i++%5;

d.What will be the output of the following code snippet: 1

int a,b=20;

a=50%5;

b=b+a;

System.out.print(a);

System.out.print(b);

e. What will be the content of jTextField1 after executing the following code: (1)

int Num=6;

Num = Num + 1;

if(Num>5)

jTextField1.setText(“”+Num);

else

jTextField1.setText(“”+(Num+5));

f. Name the methods of jTextArea to be used for the following : 1

i. adding more text to the end of already existing text.

ii. Setting whether user can edit the text in the text area.

g.What is the difference between A=10 and A==10 statements? 1

h.How many times will the following loop execute? 2

int value1 =7,value2=19;

do

{

JOptionPane.showMessageDialog(null,value1+value2);

value1=value1+2;

value2=value2-2;

}

while(value1<=value2);

i. The following code has error(s). Rewrite the correct code underlining all the corrections made : 2

value1=1, value2=2;

while(value1=<value2)

jTextArea1.append ("\n"+value1*value2;

value1++

}

j. Write java code to print the following pattern: 2

54 3 2 1

54 3 2

5 4 3

5 4

5

k. Rewrite the following code using do-while loop: 2

int num=Integer.parseInt(jTextField1.getText());

while(num<=40)

{

jOptionPane1.showMessageDialog(null, num);

num=num*20;

}

jOptionPane1.showMessageDialog(null, "Bye Bye");

l.What will be the value of x and y after executing the following loop? 2

int x=0;

for(int y=10;y<=15; y+=2)

x=y++;

--x;

IV. Read the following case study and answer the questions given below:.

a) Accept studentid and name from the user. The school provide three types of facilities.(

Gym,Swimming and Badminton). The students can avail more than one facility. Calculate the total

fees to be paid by the student. 3

Facility Fees

Gym 1000

Swimming 750

Badminton 500

b) Write the code to clear all the textfields. 1

c) Write the code to close the application. 1

V.

a. What is null value in MySql? What is the purpose of NOT NULL constraint? 1

b.Identify the error and rewrite: DELETE ALL FROM TABLE EMP; 1

c. What do you understand by the terms primary key and degree of a relation in relational data base?1

d.In a table „Employee‟, a column „Occupation‟ contains many duplicate values. Which keyword would

you use if you wish to list only different values? 1

e. Write a SQL query to remove the column Email from the table Student. 1

f. Write a SQL query to display characters from 2nd

character to 5th

character from the string

„ENVIRONMENT‟ 1

g.What is meant by Data Integrity constraints in MySql? 1

h.How is between operator different from in operator in MySql? 1

i. Write a SQL query to display the week day for date 15th

Dec 2010.

j. How is ALTER TABLE statement different from UPDATE statement?

VI.

a. Write the MYSQL commands for the following

i. To remove a column custid of table Cust. 1

ii. To add primary key to the column empno of table emp 1

b.In a database School there are two tables - Employee and dept as shown below.

Table: Employee

empid name sal deptno

T001 Vishak 20000 10

T002 Midhun 35000 50

T003 Manushi 28000 20

Table: Dept

Deptno dname Loc

10 Light HH02

20 Dance FF02

30 Production AB01

1.What is the degree and cardinality of these two tables? 1

2. Name the primary key of both the tables 1

c. Rohit a student of class xii wants to add a new column „age‟ into the table student. Write a MYSQL

command to achieve this? 1

d. What is the purpose of the MySQL query:- update emp set salary=1000 ; 1

e Find the output of the following sql queries: 2

i. select dayofweek(curdate());

ii. select mid(„Informatics‟,-7,3);

iii. select instr(„permission‟,‟pi‟);

iv. select round(16.286,2);

f. Write a MySQL command for creating a table “Flight” whose structure is given below:

2

Field Name Data Type Size Constraint

Flightno Numeric 5 Primary key

FName Nonnumeric 40 Not null

Seatno Numeric 40 Unique

Noofseats Numeric 10 Default 1000

VII. Consider the table Coaching given below.

Age Name Dept D_of_admn Fee Sex

24 Rahul Hindi 2009-01-10 2000 M

21 Shameem Computer 2008-03-24 1200 F

23 Abha History 2010-12-09 1300 F

23 Sudha History 2010-05-18 3000 F

25 Rohit Hindi 2009-12-17 3500 M

a. Write the MySQL queries for the following: 5

i. To list the age and name of female students who are in Computer Department.

ii. To list Date of admission of male students in the descending order of fees.

iii. To display all the names that starts with „R‟.

iv. To change the fees to 1700 for all persons in History department.

v. To remove the details of student whose name ends with “l”.

b. Write the output for the following: 5

i. select dept from coaching where fee <=1200;

ii. select distinct sex from coaching;

iii. select name, age from coaching where d_of_admn>‟2010-12-20‟;

iv. select *from coaching where dept in(„Hindi‟,‟Computer‟);

v. select name from coaching where name like “S%” order by dept asc;

******************** ALL THE BEST***********************

Page No :1

Answer Key

I. a.Any two significance of an input unit

responsible for taking input

converting it into computer understandable form(the

binary code).

b. Definition of System Software

The software that controls internal operations is called

System Software.

c. Any two uses of Disk Defragmentor

Disk Defragmentor attempts to minimise the fragmentation on your disk. Disk defragmentor speeds up disk access by rearranging the files and free space on your computer, so that files are stored in contignous units and free space is consolidated in one contiguous block.

d. Definition of OMR with application

It is the scanning of media to detect the presence or absence of a mark made by pen or pencil in a specific position.

It is widely used in surveys, assessments and evaluations.

The multiple choice answer sheet and course evaluation

forms are daily examples utilizing OMR technology

e. Two Differences between RAM and ROM.-

Random Access Memory is used for primary storage in

computers to hold active information of data and instructions.

It is volatile

ROM (Read Only Memory) is used to store the instructions

½ ½ 1 ½ ½ ½ ½ ½+½ ½+½

1 1 1 1 2

Page No :2

provided by the manufacturer.

It is non-volatile

f. Two differences between a compiler and an interpreter .- ½

mark for each point

Interpreter : It converts a HLL program into machine language by converting and executing it line by line. If there is any error in any line, it reports it at the same time and program execution cannot resume until the error is rectified Compiler : It also converts a HLL program into machine language but the conversion manner is different. It converts the HLL program in one go, and reports all the errors of the program along with the line numbers. After all the errors are removed, the program is recompiled.

g. Two points on firewall.

A firewall is used in network security to block unauthorised

access and to inspect network traffic while allowing authorised

communications.

It is a software or hardware or combination of both configured

to permit, deny, encrypt, decrypt or proxy all network traffic

based on a set of rules or other criteria specified.

I) a.

A variable is a named memory location, which holds a data value

of a particular data type whose value can be manipulated during

program run.

Data types are means to identify the type of data and associated operations of handling it

½ ½

1

b. boolean datatype 1

1

c. getText(): getText() method is used to obtain the text from a

jTextFeild during the run time.

½

1

Page No :3

getPassword(): getPassword() method is used to obtain the

masked text from a jPasswordField during the run time.

½

d. The break is a jump statement used to come out of an enclosing {…

} like do, while ,for or if or switch statement.

1

e. IF statement as String matching can only be done through if statement. (½ mark for correct statement identification)

(½ mark for correct reason specification)

1

f. int x=10;

int y=x*x;

½ ½

1

g. Similarity : both combo box and list box can be used to display a

list of items to the user OR both are list based controls.

Difference : Combo box allows only one item to be selected

whereas list box allows multiple selection.

½ ½

1

h. Buttongroup 1

i. long lngphone=Long.parseLong(strphone);

(½ mark for declaring variable lngphone of long type.)

(½ mark for using parse method and identifying strphone as

String type)

1

j. Even if the condition is false at the beginning of first iteration, a

do… while loop will execute its loop statements once as it is an exit

controlled loop i.e condition is checked after execution of loop

body.

1

II) a.

The Choice School Tripunithura

Annual Exam 2018-19

1

Page No :4

b. The output will be 150 1 c. (i) the value of the expression will be 0(zero)

(ii) the value of the expression will be 1(one) ½ ½

1

d. 020 (½ mark for proper working column) (½ mark for correct output in single line)

1

e. The content of jTextField1 will be 7 (½ mark for proper working column) (½ mark for correct value in textfield)

1

f. i. append()

ii. setEditable()

½ ½

1

g. In statement a=10, = is the assignment operator used to assign a value 10 to the variable A. In statement A==10, == is the relational operator used to check whether the value of variable A is equal to 10 or not. It is used in if statements.

½ ½

1

h.

the loop will execute 4(four) times. (½ mark for proper working column)

2

i. Corrected Code: int value1=1, value2=2;

2

Page No :5

while(value1<=value2) { jTextArea1.append ("\n"+value1*value2); value1++ ; }

(½ mark for each correction 4* ½ 2marks) j Full 2 marks to be given for correct nested for loop

2

k. Rewritten code int num=Integer.parseInt(jTextField1.getText()); do { jOptionPane1.showMessageDialog(null, num); num=num*20; } while(num<=40); jOptionPane1.showMessageDialog(null, "Bye Bye");

2

l. The value of y is 16 The value of x is 12

1 1

2

Page No :6

III a. b. c.

int stdid-Integer.parseInt(txtid.gettext()); String name=txtname.getText(); int facilities=0; if(chkgym.isSelected()) facilities=facilities+1000; if(chkswimming.isSelected()) facilities=facilities+750; if(chkbadminton.isSelected()) facilities=facilities+500; txTfee.setText(“”+facilities); txtid.settext(“”); txtname.settext(“”); txtfee.settext(“”); System.exit(0);

½ ½ ½ ½ ½ ½

3 1 1

IV a.

NULL value indicates no value or empty value. Null value is not equal to zero. The constraint NOT NULL is used for columns in which null value is not allowable i.e it cannot be left empty.

½ ½

1

b. Error underlined: DELETE ALL FROM TABLE EMP; Correction DELETE FROM EMP;

½ ½

1

c. Primary Key: A candidate key that is primarily chosen for unique

identification of tuples in a Relation.

Degree : Number of attributes in a relation is the degree of that

relation

½ ½

1

Page No :7

d. DISTINCT KEYWORD 1

e. ALTER TABLE STUDENT DROP EMAIL; 1

f. SELECT MID(“ENVIRONMENT”,2,4);

OR SELECT SUBSTR(“ENVIRONMENT”,2,4);

1

g. Constraints are the rules enforced on data columns on table.

These are used to limit the type of data that can go into a table.

This ensures the accuracy, reliability and integrity of the data in

the database.

1

h. Between operator specifies a range of values

In operator specifies a list of values enclosed in brackets ‘ ()’

½ ½

1

i. SELECT DAYOFWEEK(“2010-12-15”); 1

j. Alter table is a DDL command that changes the structure of a table

.

Update statement is a DML command that changes the data values

in the table.

½ ½

1

V a

Alter table cust drop custid;

Alter table emp add primary key(empno);

1 1

2

b ‘Table Employee: degree = 4 , cardinality =3

Table dept: degree = 3 , cardinality =3

The primary key of employee table is empid

The primary key of dept table is deptno

½ ½ ½ ½

2

Page No :8

c Alter table student add age int(2);

1

d The update command changes all the values in column salary to

1000.

1

e a. 2

b. rma

c. 0

d. 16.29

½ ½ ½ ½

2

f Create table Flight(flightno int(5) not null primary key, fname varchar(40) not null, seatno int(40) unique, NoOfseats int(10) default 1000);

2

VII. a.

i. Select age,name from coaching where sex= “F” and dept= “computer”;

ii. Select d_of_admn from coaching where sex=”M” order by fee desc;

iii. Select name from coaching where name like “R%”; iv. Update coaching set fee=1700 where dept= “history”; v. Delete from coaching where name like(“%l”);

1 1 1 1 1

5

b. i. Dept

computer

ii. Distinct(sex)

M F

iii.no rows selected. iv. Age Name Dept D_of_admn Fee Sex 24 Rahul Hindi 2009-01-

10 2000 M

21 Shameem

Computer

2008-03-24

1200 F

1 1 1 1

5

Page No :9

25 Rohit Hindi 2009-12-17

3500 M

v. Name Shameem Sudha

1

THE CHOICE SCHOOL

SECOND TERM EXAMINATION 2018-19

REVISION QUESTION PAPER

Time: 3 Hrs. MATHEMATICS Marks: 100

SECTION A

QUESTIONS 1 - 4 carry one mark each (1x4 =4)

1. If .

2. Find the general term in the expansion of (

)

3. Find the 7th term of the progression

4. Evaluate

SECTION B

QUESTIONS 5 - 12 carry 2 marks each (2x 8=16)

5. In a class of 50 students, 30 like Mathematics, 25 like Science and 16 like both. Find the

number of students who like

(i) either Mathematics or Science

(ii) neither Mathematics nor Science

6. Solve .

7. Find the equation of the hyperbola where foci are (0 , ) and the length of the latus rectum is 36.

8. Find the points on Y - axis whose distance from the line

+

=1 is 4 units

9. Solve the quadratic equation

10) How many different words can be formed using the letters of the word ALLAHABAD? In how many of them L do not come together?

11) Find the coordinates of the points which trisect the line segment joining the points P(4,2,-6) and Q(10, -16, 6).

12) Find the domain and range of f(x) = 1 -- |x --2|

SECTION C

QUESTIONS 13 - 23 carry 4 marks each (4 X11 =44)

13. a) Find the equation of a line which passes through (3,4) and the sum of its intercepts on the axes is 14 .

b) Identify the conic section represented by the equation 4 + = 100 and draw its rough graph indicating the major and minor axis. Also find its eccentricity.

14. Let N = {9,10,11,12,13}. Let A be a relation from N to N such that in the ordered pair (x,y) in A , y is two more than x. Express A in three different ways and find the domain and range of A

15. A bag contains 6 black and 4 red balls. Determine the number of ways of selecting 5 balls out

of it if i) at least 2 red balls are included ii) at most 2 red balls are included?

16. Prove that the coefficient of xn in the expansion of ( 1 +x )2n is twice the coefficient of xn in the

expansion of (1+ x)2n-1 .

17. The sum of first three terms of a GP is 16 and the sum of the next three terms is 128. Find the sum of n terms of the GP.

18. Find the modulus and the argument of

19. Find the sum to n terms of the series 0.5 + 0.55 + 0.555 + ......

20. Solve the inequality (x-3)( x-2) > 0

21. Find the equation of the line through the point (3,2) making an angle 450 with the line x - 2y= 3.

22. Prove that for every natural number n

OR

Reduce the equation x+ y+5√ = 0 to the normal form.

23. Show that the points A(-2,3,5), B(1,2,3) and C(7,0,-1) are collinear. Find the ratio in which C divides AB.

24. A survey was conducted of 25 students, it was found that 15 had taken mathematics,12 had taken physics and 11 had taken chemistry, 5 had taken mathematics and chemistry, 9 had taken mathematics and physics, 4 had taken physics and chemistry and 3 had taken all the three subjects. Find the number of students that had

i. only chemistry

ii. only mathematics

iii only physics

iv. physics and chemistry but not mathematics

v. mathematics and physics but not chemistry

vi. only one of the subjects

vii. at least one of the subjects

viii. none of the subjects

SECTION D

EACH QUESTION CARRIES 6 marks ( 6X6 =36)

24. Write the following relations as a set of ordered pairs and find which of them are functions.

Give reason if not a function.

i. { (x,y): y = 2x +3 , x { 0, 1, 2} , y { 3, 5, 7, 9}

ii. { (x,y): y = x2, x { 1,2} , y { 1,2,4,6,8}

iii. { (x,y): y 2x+1, x { } { }

25. a. Find the centre and radius of the circle represented by the equation

b. If the origin is the centroid of the triangle PQR with vertices P(2a,2, 6) ,

Q (-4 , 3b ,-10 ) and R (8, 14, 2c) , then find the values of a, b, c

26. Solve the following system of inequalities graphically :

X - 2y ≤ 3 , 3x +4y ≥ 12 , x≥0 , y ≥1

27. i. Prove that

ii. Using binomial theorem, evaluate (√ ) (√ )

28. Find the number of permutations of the letters of the word TENDULKAR

i. beginning with T and ending with R

ii. U always in the middle

iii.Vowels are always together

iv. Vowels are never together

v. No two vowels are together

29. Using the Principle of Mathematical Induction, prove that

********************************

THE CHOICE SCHOOL, TRIPUNITHURA

ANSWER KEY REVISION TEST 2 - 2018-2019

STD : XI MATHEMATICS Marks : 100 Time : 3 hours

SECTION A

Each question carries 1 mark: (1x4 =4)

1. If 𝑛 𝑝 = 720 𝑎𝑛𝑑 𝑛 𝑐 120, 𝑓𝑖𝑛𝑑 𝑟.

Ans. 𝑟! = = 6 𝑟 = 3

2. Find the general term in the expansion of 2𝑥 +

Ans, 𝑇 = 𝑛𝑐 (2𝑥)( )

= 5𝑐 2 𝑥

3. Find the 7th term of the progression , − , 1, −2, … … ….

Ans. 7 𝑡𝑒𝑟𝑚 = 𝑎 = 𝑎𝑟 = × (−2) = 16

4. Evaluate sin( −1125)

Ans.sin(−1125) = − sin(3 × 360 + 45 ) = − sin 45 = −√

SECTION B

QUESTIONS 5 - 12 carry 2 marks eac (2x 8=16)

5. In a class of 50 students, 30 like Mathematics, 25 like Science and 16 like both. Find the number of students who like (i) either Mathematics or Science

(ii) neither Mathematics nor Science

:

(i) n( either maths or Science) = 14 + 16 + 9 = 39

(ii) n( neither Maths nor Science) = 50 - 39 = 11

6. Solve 4 cos 𝑥 + 6 sin 𝑥 = 5.

4(1 − sin 𝑥) + 6 sin 𝑥 = 5; sin 𝑥 = ; sin 𝑥 =√

; sin 𝑥 = sin ; 𝑥 = 𝑛𝜋 ±

7. Find the equation of the hyperbola where foci are (0 , ± 12) and the length of the latus rectum is 36.

The required equation is of the form − = 1

c = 12 and latus rectum = 36; 𝑏 = 18𝑎

𝑐 = 𝑎 + 𝑏 ; 𝑎 + 18𝑎 = 144; 𝑎 + 18𝑎 − 144 = 0; 𝑎 = 6, −24 (1)

But a is +ve; a = 6; 𝑏 = 18𝑎; 𝑏 = 18 × 6 = 108

− = 1

8. Find the points on Y - axis whose distance from the line + =1 is 4 units

9. Solve the quadratic equation 𝑥 + 𝑥 + = 0

10) How many different words can be formed using the letters of the word ALLAHABAD?

i. In how many of them L do not come together?

No. of words that can be formed = !

! ! =7560

No. of words with L's do not come together = Total words - No. of words with L's come together = 7560 −

!

!= 7560 − 1680 = 5880

11) Find the coordinates of the points which trisect the line segment joining the points P(4,2,-6) and Q(10, -16, 6).

( Alternate method: Hint: Point B is the midpoint of AQ)

12) Find the domain and range of f(x) = 1 -- |x --2|

SECTION C

QUESTIONS 13 - 23 carry 4 marks each (4 X11 =44)

13. a) Find the equation of a line which passes through (3,4) and the sum of its intercepts on the axes is 14 .

Intercept form of equation of a line + = 1

The line passes through (3,4) and a + b = 14

+ = 1; 3𝑏 + 4𝑎 = 𝑎𝑏; 3(14 − 𝑎) + 4𝑎 = 𝑎(14 − 𝑎);

𝑎 − 13𝑎 + 42 = 0; 𝑎 = 6,7

case 1: a = 6, b= 8 Equation 4x + 3y = 24

case 2 : a = 7, b= 7 Equation x + y = 7

b) Identify the conic section represented by the equation 4 𝑥 + 𝑦 = 100 and draw its rough graph indicating the major and minor axis. Also find its eccentricity.

+ = 1 𝑤ℎ𝑖𝑐ℎ 𝑖𝑠 𝑜𝑓 𝑡ℎ𝑒 𝑓𝑜𝑟𝑚 + = 1

Major Axis is along Y - axis and Minor axis along X - axis

𝑐 = 𝑎 − 𝑏 = 100 − 25 = 75 ; 𝑐 = 5√3

eccentricity = =√

=

14. Let N = {9,10,11,12,13}. Let A be a relation from N to N such that in the ordered pair (x,y) in A , y is two more than x. Express A in three different ways and find the domain and range of A

Set-builder method:A = { (x,y):y = x + 2,x , y ∈ N}

Roster method: A = { (9,11) , (10,12), (11,13)} Domain of A = { 9, 10, 11} Arrow diagram: Range of A = { 11,12,13}

15) A bag contains 6 black and 4 red balls. Determine the number of ways of selecting 5 balls out of it if i) at least 2 red balls are included ii) atmost 2 red balls are included?

i.

Total number of ways of selecting 5 balls including at least 2 red balls

= 4𝐶 × 6𝐶 + 4𝐶 × 6𝐶 + 4𝐶 × 6𝐶 = 120 + 60 + 6 = 186

red(4) black(6)

2 3

3 2

4 1

ii.

Total number of ways of selecting 5 balls including at most 2 red balls

= 4𝐶 × 6𝐶 + 4𝐶 × 6𝐶 + 4𝐶 × 6𝐶 = 6 + 60 + 120 = 186

16) Prove that the coefficient of xn in the expansion of ( 1 +x )2n is twice the coefficient of xn in the expansion of (1+ x)2n-1 .

2𝑛𝐶 =( )!

! != 2𝑛 (2𝑛 − 1)!/𝑛 (𝑛 − 1)! 𝑛! = 2

( )!

( )! ! = 2 × (2𝑛 − 1)𝐶 . Hence proved.

17. The sum of first three terms of a GP is 16 and the sum of the next three terms is 128. Find the sum of n terms of the GP.

Ans.

=

= ; 𝑟 = 2

red(4) black(6)

0 5

1 4

2 3

𝑎 + 𝑎𝑟 + 𝑎𝑟 = 16; 𝑠𝑢𝑏𝑠𝑡𝑖𝑡𝑢𝑡𝑖𝑛𝑔 𝑟 = 2 𝑔𝑖𝑣𝑒𝑠 𝑎 =

18. Find the modulus and the argument of 𝑧 =( )

z =( )

=

Multiplying numerator and denominator by 3 + 4i

z = −1 + i = r(cosθ + sinθ); tanθ = −1

r = ƖzƖ = [(−1)2 + (1)2] = √2

Since the point (-1,1) representing z lies in the second quadrant,

θ = arg(z) = π − =

19. Find the sum to n terms of the series 0.5 + 0.55 + 0.555 + ......

S = 0.5 + 0.55 + 0.555 + 0.5555 + ⋯ ….

= 5 ( 0.1 + 0.11 + 0.111 + .......)

= 59

(0.9+ 0.99+ 0.999+ ⋯ … … … )

= 59

[(1− 0.1) + (1− 0.01) + (1− 0.001) + … . . n terms]

= 59

[(1 + 1 + 1 + ⋯ … . n times) − (0.1 + 0.01 + 0.001 + ⋯ . n terms)]

= 59

[ n −. ( ( . ) )

. ] = [ n −

. ( ( . ) )

.] = [ n − (1 − (0.1) )]

= 59

[9n − 1 + (0.1) ]

20. Solve the inequality (x-3)( x-2) > 0

Case 1 : (x − 3) > 0𝑎𝑛𝑑 ( x − 2) > 0 𝑖𝑚𝑝𝑙𝑖𝑒𝑠 𝑥 > 3 (1)

Case 2: (x − 3) < 0𝑎𝑛𝑑 (x − 2) < 0 𝑖𝑚𝑝𝑙𝑖𝑒𝑠 𝑥 < 2 (2)

Combining (1) and (2) the solution set is (−∞,2) ∪ (3,∞)

21. Find the equation of the line through the point (3,2) making an angle 450 x - 2y= 3

Let m be the slope of the required line.

Equation of a line passing through (3,2) and slope m is y -2 = m(x - 3) (1)

Slope of the line x - 2y = 3 is 1/2.

tan 450 =

= ±1; m = 3, −

Substituting for m in (1), we get the required equations.

3x − y − 7 = 0 and x + 3y − 9 = 0

22. Prove that n(n + 5)is divisible by 6, for every natural number n

OR

Reduce the equation x+ y+5√2 = 0 to the normal form.

𝑥 + 𝑦 = −5√2

−𝑥 − 𝑦 = 5√2

Dividing LHS and RHS by √1 + 1 = √2

−√

+ −√

= 5; 𝐶𝑜𝑚𝑝𝑎𝑟𝑖𝑛𝑔 𝑡ℎ𝑖𝑠 𝑤𝑖𝑡ℎ 𝑥𝑐𝑜𝑠ɵ + 𝑦𝑠𝑖𝑛ɵ = 𝑝

𝑐𝑜𝑠𝜃 = −√

𝑎𝑛𝑑 𝑠𝑖𝑛ɵ = −√

; ɵ is in third quadrant; 𝜃 = 𝜋 + = 5𝜋/4

Normal form is 𝑥𝑐𝑜𝑠 + 𝑦 = 5

23. Show that the points A(-2,3,5), B(1,2,3) and C(7,0,-1) are collinear. Find the ratio in which C divides AB.

Let P divides AB in the ratio k:1

Coordinates of P are given by ( , , )

The points A,B,C are collinear if P = C for some unique k

Equating = 7, we get k = -3/2

Substituting the value of k in the y and z coordinates of P, we find that P = C

Therefore C divides AB externally in the ratio 3:2. 24. A survey was conducted of 25 students, it was found that 15 had taken mathematics,12 had

taken physics and 11 had taken chemistry, 5 had taken Maths and chemistry, 9 had taken Maths and physics, 4 had taken physics and chemistry and 3 had taken all the three subjects. Find the number of students that had

i. only chemistry

ii. only mathematics

iii only physics

iv. physics and chemistry but not maths

v. maths and physics but not chemistry

vi. only one of the subjects

vii. at least one of the subjects

viii. none of the subjects

Ans: [5, 4, 2, 1, 6, 11, 23, 2]

SECTION D

EACH QUESTION CARRIES 6 marks ( 6X6 =36

24. Write the following relations as a set of ordered pairs and find which of them are functions. Give reason if not a function.

i. { (x,y): y = 2x +3 , x ∈ { 0, 1, 2} , y ∈ { 3, 5, 7, 9}

Ans. { (0,3), (1,5), (2,7)} is a function

ii. { (x,y): y = x2, x ∈ { 1,2} , y ∈ { 1,2,4,6,8}

Ans: { (1,1), (2,4)} is a function

iii. { (x,y): y >2x+1, x ∈ {1, 2, 3} ,  ∈ { 2, 4, 6}

Ans: {(1,4), (1,6), (2,6)} Not a function as image of 1 is not unique OR there is no y such that (3,y) satisfies the given condition.

25. a. Find the centre and radius of the circle represented by the equation 3x + 3y + 6x − 4y − 1 = 0 Ans: x + y + 2x − y − = 0

(x + 2x + 1) + y − y + = + 1 + =

x − (−1) + y − = ; Centre −1, and radius =

(b) If the origin is the centroid of the triangle PQR with vertices P(2a,2, 6) , Q (-4 , 3b ,-10 ) and R (8, 14, 2c) , then find the values of a,b,c

Coordinates of the centroid of the △PQR is given by

, , which is same as (0,0,0) )

Equating the coordinates , we get a = -2, b = 16/3 , c =2

26. Solve the following system of inequalities graphically :

X - 2y ≤ 3 , 3x +4y ≥ 12 ,x≥0 , y ≥1

27. i. Prove that

= tan 4A

Ans:

LHS = ( ) ( )

( ) ( )

= ( )

( ) = = tan4A

ii. Using binomial theorem, evaluate √2+ 15

+ √2− 15

Ans: (x + y) + (x − y) = 2(x + 10x y + 5xy ) [using binomial , expand and simplify]

putting x = √2and y = 1, we get 58√2

28. Find the number of permutations of the letters of the word TENDULKAR

i. beginning with T and ending with R

ii. U always in the middle

iii.Vowels are always together

iv. Vowels are never together

v. No two vowels are together

Number of permutations of TENDULKAR = 9! = 362880

Ans:

i. T _ _ _ _ _ _ _ R ; No. of arrangements = 7! = 5040

ii. _ _ _ _ U _ _ _ _ ; No. of arrangements = 8! = 40320

iii. _ _ _ _ _ _ (3 vowels) = No. of arrangements = 7! ×3! = 30240

iv. Vowels never together = 362880 - 30240 = 332640

v. No two vowels are together

X C X C X C X C X C X C X = 6! × 7P3 = 151200

28. Using the principle of mathematical induction, prove that

1.3 + 2.3 + 3.3 + … … … + n. 3 = ( )

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THE CHOICE SCHOOL

SECOND TERM EXAMINATION 2018-19

REVISION QUESTION PAPER

Time: 2Hrs. PAINTING Marks: 40

Answer all the questions. Questions 1 – 3 carry 5 marks each and questions 4-8 carry 2 marks each

and 9 and 10 carry 1 mark each

1. Explain the Seated Buddha, Katra Mount, Mathura. (5)

2. Describe the Pillars of Sarnath with an eg. (5)

3. Explain about the temple architecture that prevailed in the Gupta period. (5)

4. Who introduced Buddhism and give 3 reasons on how art flourished. (2)

5. Name few places where the finest sculptures were found and the names of the two religious

sects that arose. (2)

6. Give four reasons to why rock cut caves are important. (2)

7. Define any 4 principles of Art . (2)

8. Describe the Sanchi Stupa in few lines. (2)

9. Fill in the blanks: (1 x 5= 5)

a. The nucleus of a temple is otherwise known as___________________

b. Buddha images during Gandhara period had _____________ features.

c. The attendant figures were replaced as ____________ and ____________.

d. The yoga tradition of the Shungan period was known as _______________.

e. Buddha images of Mathura were modelled on ______________ images.

10. Name the 5 Elements of Drawing. (1 x 5= 5)

***************************

Painting Answer Key

1. seated in padmasana and right hand in abhayamudra - Ushnisa (hair knot) behind head is halo

with scaloped edge – urna on the forehead – sanghati covers left shoulders - 2 bodhisatva

attendants are seen behind - earlier was Bramha and Indra later replaced as Padmapani and

Vajrapani.

2. Made of chunar sandstone – monolithic stone – mauryan polish – plinth – shaft a cylindrical long

rounded structure – with a capital above that had either birds or animals – capital stood on the

abacus sculpted with motifs and different animals and bird structures - designed as per the

shilpasastra.

3. Marks the beginning of the temple architecture – flat roofed square temple with a shallow pillared

porch – circum- ambulatory path with pillared porch – the sanctuary or nucleus with a shikara on

top - later rectangular temple with an apsidal back - circular temple with 4 rectangular

projections at the cardinal faces. Based on the roofs the names were given as Nagara in the North

& Dravidian in the South.

4. Ashoka – 1st mauryan king – development of schools of art and literature – sculptures painting and

architecture developed - magnificent buildings – wood was replaced by stone – egs. Sanchi stupa

- pillars – Buddhist sculptures.

5. M.P , A.P., U.P, Bihar, Odisha , Maharashtra. Or Barhut , Mathura, Bodhgaya, Udayagiri

Khandagiri, Bhaja. B. Shaivism & Vaishnavism

6. Finest examples of monolithic rockcut architecture - cost, labour and skill turning huge rocks

into residential places - attained high standards of workmanship and excellence - highly polished

interiors.

7. Any 4 defnitions.

8. Has 4 gateways or toranas – leading to a circumambulatory path – there is a flight of stairs leading

to the upper or second level - has an anda or egg shaped covering - over which is the harmika

and the chatris on top. – stupa is covered with railing fully sculpted and showing lives of Buddha

– Jataka Tales - mud, brick and wood were medium used – walls were uncut massive blocks of

stone – depictions of animals and birds.

9. A. garbagriha b. Hellenistic features c. Bodhisatva Padmapani and Bodhisata Vavajrapani d.

Patanjali e. Yaksha images

10. Line, Shape, forms, Space, Colors, & Perpective

THE CHOICE SCHOOL SECOND TERM EXAMINATION 2018-19

REVISION QUESTION PAPER Time: 3Hrs. PSYCHOLOGY Marks: 70

GENERAL INSTRUCTIONS

QUESTIONS IN PART A CARRY 1MARK EACH

QUESTIONS IN PART B CARRY 2 MARKS EACH

QUESTIONS IN PART C CARRY3 MARKS EACH

QUESTIONS IN PART D CARRY 4 MARKS EACH

QUESTIONS IN PART E CARRY 6 MARKS EACH

PART A

1. Who proposed the stage model of memory?

2. …………………is a form of thinking that is goal-directed.

3. Name a prominent cognitive psychologist.

4. ……………are the people who have the power to influence the person.

5. ……………..method used in verbal learning.

6. …………refers to the consistency of test scores on the same test on two or more occasions.

7. ………….psychology focuses on the changes in the individual over a long period of time.

8. ……………..is primarily concerned with sleep mechanisms.

9. ……………..refers to the positive influence of one task on the other.

10. Name the psychologist associated with ‘memory as a constructive process’.

PART B

11. Define mnemonics.

12. Give the different features of learning.

13. Discuss any two goals of psychological enquiry.

14. What are the functions of thyroid gland?

15. Why the medulla is called the ‘vital centre of the brain’?

16. Differentiate between appetitive and aversive UCS.

PART C

17. Explain the different ethical issues related psychological research.

18. What is a concept? Differentiate between natural and artificial concept.

19. Explain the branch of environmental psychology.

20. Discuss levels of processing approach to memory.

PART D

21. Discuss the development of psychology in India.

22. Explain the ANS in terms of it’s functioning.

23. Differentiate between the different types of correlation coefficient.

24. Define learning disabilities. Give any symptoms of LD

25. Discuss any two barriers of creative thinking.

26. Explain the method of case study.

PART E

27. Discuss the development of language among humans.

Or

Discuss the role of heredity and environment in language development.

28. Discuss the different techniques used in survey.

Or

Discuss the ethical issues seen in psychological enquiry.

**************************

Answer key

1 mark

1. Atkinson and Shriffrin

2. Problem solving

3. Jean Piaget

4. Socialization agent

5. Paired assoicates

6. Reliability

7. Developmental psychology

8. Pons

9. Positive transfer

10. Barlette

2marks

11. Aids to improve memory skills. Examples too

12. Three features- is permanent change in bh, inferred process, involves experience.

13. Goals of enquiry: description, explain, prediction –explain

14. Produces thyroxine- helps metabolism- under and over secretion problems

15. Medulla controls the involundary responses like life supporting activities. Eg

16. Appetitive –brings out approach responses, aversive- brings out avoidance responses

examples

3marks

17. Ethical issues – voluntary participation, debriefing, confidentiality -explain

18. A set of features connected by a rule. Natural- illdefined with flexible rules and vice versa for

artificial with examples

19. Environmental psychology: studies the link between man and his environment. Discuss-

examples

20. Levels of processing- craik and lockhart- 3 levels- basic intermediate and semantic levels-

examples

4marks

21. Development of psychology in India: main points on page 10.

22. ANS- sympathetic and parasympathetic systems explain

23. Positive, negative, zero correlations- explain withegs

24. Themes of research and application- human behavior is caused, is a function of person and

environment, scientific methods explain

25. Heterogeneous group of disorders having to writing, reading, calculations, comprehensions

etc. explain

26. Indepth study on a particular case discuss

6marks

27. Language development- crying, babbling, echolalia, one word stage two word stage.

Or Skinner and Chomsky s views

28. Survey – interviews, questionnaires and telephone survey

Or ethical issues : voluntary participant, informed consent, confidentiality - explain

THE CHOICE SCHOOL

SECOND TERM EXAMINATION 2018-19

REVISION QUESTION PAPER

Time: 3Hrs. SOCIOLOGY Marks: 80

General Instructions: There are 25 questions in all. All questions are compulsory. Questions No. 1-14 are very short answer type questions carrying 2 marks each.

Answer to each question should not exceed 30 words. Questions No. 15-21 are short answer type questions carrying 4 marks each. Answer

to each question should not exceed 80 words. Questions No. 22-25 are of long answer type questions carrying 6 marks each. Answer

to each question should not exceed 200 words each. Questions no 25 is to be answered with the help of the passage given

1. How is education a factor of social change? 2. What is the benefit or importance of co operation in society? 3. How do multiple status lead to role conflict? 4. What is the role of primary agency of socialization in moulding the life of an individual? 5. What are the chief characteristics of social structure? 6. Briefly state how social order gets disturbed? 7. How is sociology and economics correlated? 8. List out the features of culture. 9. Differentiate between social structure and social stratification. 10. What do you mean by the term gentrification? 11. What was Darwin’s ideas that went into the making of Sociology? 12. Why is sociology considered as a scientific study?

13. What is the difference between social and quasi group? 14. Differentiate between power and authority

15. What are the challenges to social order in urban area?

16. What is Karl Marx’s view on co-operation? 17. Explain the scope of Sociology 18. Define a peer group. Explain the advantages and disadvantages of the influence of peer group in a society. 19. Is competition a necessary component for the progress of mankind? Discuss 20. Explain the various dimensions of culture 21. Religion affects the economic development of a country. Justify the statement. 22. Competition, co operation and conflict co exist in modern society. Justify 23. What do you understand by socialization? Explain any four agencies of socialization. 24. Discuss the different forms of family. 25. Read the passage and answer the following questions Man kills sister for marrying from outside the caste The elder brother of a 19 year old girl here carried out an apparent honour killing by allegedly beheading while she was asleep at a hospital , Police said on Monday. The girl was undergoing a treatment at a hospital for stab wounds after her brother attacked on December 16 for marrying outside the caste, they said. She and her lover eloped on December 10 and returnrd to their houses on December 16 after getting married, which was opposed by her parents, they said. The Panchayat als tried to pressurize the couple but they refused to be swayed.

1. What do you understand by honour killing? State the rule which prohibits marrying outside the caste.

2. Read the newspaper report given above and identify the different agencies of social control involved.

Answer Key

1. Education has far reaching consequences, not only for the individual but also for the

society.

2. Makes work easy, develops feeling of unity, economically beneficial, sharing information

increases knowledge.

3. Status refers to the social position with defined rights and duties assigned to that position.

Role conflict is incompatibility among roles corresponding to one or more status.

When a person is having different roles to play as the person is acquiring multiple status;

conflict is bound to arise.

4. Primary socialization of a child take place in infancy and childhood by family.

This initial learning shapes the overall personality of the child.

5. It reflects the outer form of society, social structure is abstract, the units have their own

structure, social structure is not same in all societies.

6. The existence of domination, power, authority and law does not imply that they always

meet with obedience, contestation is the biggest enemy of social order, contestation results

into crime, crime results into violence and thus conflict arise in society.

7. Economics is social science which deals with wealth in terms of production, consumption

and distribution of goods and services. Sociological approach looks at economic behavior in a

broader context of social norms, values, practices and interest.

8. Gentrification refers to the conversion of a previously lower class neighbourhood into a middle or

upper class neighbourhood. Any example

9. Social structure refers to the existence of structured inequalities between groups in society, in

terms of their access to material or symbolic rewards.

Social stratification refers to the idea that society is divided into a patterned structure of unequal

groups.

10. Gentrification refers to the conversion of a previously lower class neighbourhood into a middle

or upper class neighbourhood. Any example

11. Society was often compared with living organisms.

Growth through stages comparable to those of living organisms

12. Based on experimentation,value neutrality, based on social reality.

13. Quasi group: lacks structure and organization, they don’t share common culture, value,

norm and interest.

Social group: collection of continuously interacting people, they share common culture, value,

norm and interest.

14. Power - The ability of individuals or groups to carry out their will even when opposed by others. (b) Authority - Power is exercised through authority. Authority is that form of power which is accepted as legitimate.

15. Social order and Social Change in Urban Areas. Urbanism is a modern phenomenon. Before the

modern era, trade, religion and warfare were some of the major factors that decided the location and

importance of cities. development of group identities. High density of population . Large number of

workers. Housing problems. he phenomenon of ‘street people’ It is also the leading cause for the

emergence of slums. Ghetto, Ghettoisation: Gated Communities: Legitimation Mass Transit

16. 4Karl Marx distinguishes human life from animal life.

Humans not only adjust and accommodate to cooperate but also alter society. Co-operation is

not voluntary in a society where class exists.Alienation.

17. Scope of sociology Sociology is a general and systematic social science. Scope of sociology is very vast. Sociology studies the various forms of social relationships. Study of sociology gives us several intellectual benefits It is useful information about the social system in the present day society Sociologist follow a path of objective knowledge, free from bias and prejudices. Sociology gives an insight in to man’s life on the earth

18. Peer group- a kind of primary group formed between either of similar age group or who are in a

common professional group

Advantage Peer influence can be positive, become more assertive, try new activities, or to get more

involved with school.

Disadvantages It can be negative too, take part in antisocial behavior, changing the way they talk,

breaking rules.

19. In the contemporary world, competition is the dominant norm and practice.Modern capitalist society lays stress on greater efficiency and great profit maximisation. The following are the underlying assumptions of capitalism: (a) expansion of trade (b) division of labour (c) specialisation (d) rising productivity _ The ideology of competition is the dominant ideology of capitalism. Competition along with the laissez-fair economy in the 19th century has made important contribution in promoting economic growth. 20. Dimensions of culture (i) Cognitive aspect of culture : refers to understanding, how we make sense of all the information coming to us from our environment.

(ii) Normative aspects : consists of folkways, mores, customs, conventions and laws. There are values that guide social behaviour in different contexts. Social norms are accompanied by sanctions that promote conformity. (iii) Material aspects of culture : refers to tools, technologies, machines, buildings and modes of transportation as well as instruments of production and communication. There are two principal dimensions of culture: (a) Material dimension is crucial to increase production and enhance the quality of life. (b) Non-material: Cognitive and normative aspects are non-material. For integrated functioning of a culture the material and nonmaterial dimensions must work together.- Material dimensions change rapidly, the non-material aspects lag behind in terms of values and norms which is called Cultural Lag.

21. Pioneering work by Max Weber demonstrates how sociology looks at religion in its

relationshipto other aspects of social and economic behavior. Weber argues that Calvinism

exerted an important influence on the emergence and growth of capitalism as a mode of

economic organization. The Calvinist believed that the world was created for the glory of god.

Calvinist also believed in the concept of pre destination. The money was not to be used for

wordly consumption.

22. The concept of competition, co operation and conflict. Features of competition, co

operation and conflict. As modern society is based on capitalism, competition is at its peak.

23. Socialisation is the process whereby the helpless infant gradually becomes self aware ,

knowledgable person, skilled in the of the culture into which he or she is born. Explain any

four agencies of socialization.

24. On the basis of dominance, on the basis of residence, on the basis of structure, on the basis

of decent, on the basis of kinship.

25. students response