Holiday Homework

Class:-XII

English Physics Chemistry Biology

Maths Accountancy Economics Business Studies

Geography Political Science Informatics Practices

EP

Physical Edu. Music Fine Arts

Subject:-English Core

1. ARTICLE WRITING – ‘Migrant workers fled India’s cities in masse. Last year Prime Minister

Shri Narendra Modi’s announcement of lockdown left them suddenly unemployed’.

“ This Unfamiliar hardship faced by migrant workers since the outbreak of COVID – 19 might

result in fear mania”. Write an Article with regards to the topic. (paste relevant pictures

also).

2. POSTER MAKING – Not all heroes wear capes. In the midst of the novel coronavirus

pandemic, the real heroes wear scrubs. Prepare a Poster on ‘ Doctors as Angles in times of

Tensity’ expressing much needed respect & support for these front line warriors.

3. READING -

# Read lesson 1. The portrait of a Lady 2. We aren't afraid to die… ( Hornbill) and Lesson 1.

The Summer of the Beautiful White Horse , Lesson 2 The Address ( Snapshots)

# Write gist of the above lesson and also write your analysis of the characters present in

these stories.

4. NARRATION - Draw a comic strip of the narrator’s family (We’re not afraid to die….) on A4

Sheet and write their reactions & conversation (in the form of comic book) on reaching Ile

Amsterdam Island.

Note: Compile your written / typed tasks in one file/ PPT. Mention your name, class, section

and roll no.

Revise your UT 1 syllabus and complete all your written work

PHYSICS

1. Solve the equation 06136 2 xx

2. Find dx

dy for the following functions:

(a) 1025 xxy

(b) x

xxy1

(c) xxxy 635 2/35

(d) 3673 2 xxy

(e) 2

12

x

xy

3. Integrate the following with respect to 𝑥

(a) 3 5x

(b) x

x1

(c) 30

03sin xdx

(d) dxx

Gmm

r

2

Gmm = constant

4. In van der Wall’s gas equation [𝑃 +𝑎

𝑉2] [𝑉 − 𝑏] = 𝑅𝑇. Determine the dimensions

of a and b.

5. Fill in the blanks

(a) The volume of a cube of side 1 cm is equal to.....m3

(b) The surface area of a solid cylinder of radius 2.0 cm and height 10.0 cm is equal

to ... (mm)2

(c) A vehicle moving with a speed of 18 km h–1covers....m in 1 s

(d) The relative density of lead is 11.3. Its density is ....g cm–3or . ...kg m–3.

6. A book with many printing errors contains four different formulas for the displacement

y of a particle undergoing a certain periodic motion:

(a)

(b) y = a sin vt

(c)

(d)

(a = maximum displacement of the particle, v = speed of the particle. T = time-period of

motion). Rule out the wrong formulas on dimensional grounds.

CHEMISTRY

1 Which of the following conclusions could not be derived from Rutherford’s α -particle

scattering experiement? (i) Most of the space in the atom is empty. (ii) The radius of the atom

is about 10–10 m while that of nucleus is 10–15 m. (iii) Electrons move in a circular path of

fixed energy called orbits. (iv) Electrons and the nucleus are held together by electrostatic

forces of attraction.

2 Which of the following statement is not correct about the characteristics of cathode rays? (i)

They start from the cathode and move towards the anode. (ii) They travel in straight line in

the absence of an external electrical or magnetic field. (iii) Characteristics of cathode rays do

not depend upon the material of electrodes in cathode ray tube. (iv) Characteristics of cathode

rays depend upon the nature of gas present in the cathode ray tube

3 Which of the following statements about the electron is incorrect? (i) It is a negatively

charged particle. (ii) The mass of electron is equal to the mass of neutron. (iii) It is a basic

constituent of all atoms. (iv) It is a constituent of cathode rays.

4 Which of the following properties of atom could be explained correctly by Thomson Model

of atom? (i) Overall neutrality of atom. (ii) Spectra of hydrogen atom. (iii) Position of

electrons, protons and neutrons in atom. (iv) Stability of atom.

5 Two atoms are said to be isobars if. (i) they have same atomic number but different mass

number. (ii) they have same number of electrons but different number of neutrons. (iii) they

have same number of neutrons but different number of electrons. (iv) sum of the number of

protons and neutrons is same but the number of protons is different.

6 The Balmer series in the hydrogen spectrum corresponds to the transition from 1 n = 2 to 2

n = 3,4,.......... This series lies in the visible region. Calculate the wave number of line

associated with the transition in Balmer series when the electron moves to n = 4 orbit.

7 What is photoelectric effect? State the result of photoelectric effect experiment that could

not be explained on the basis of laws of classical physics. Explain this effect on the basis of

quantum theory of electromagnetic radiations.

8 Why was a change in the Bohr Model of atom required? Due to which important

development (s), concept of movement of an electron in an orbit was replaced by, the concept

of probability of finding electron in an orbital? What is the name given to the changed model

of atom?

9 Define the law of multiple proportions. Explain it with two examples. How does this law

point to the existance of atoms?

10 What is the difference between molality and molarity?

11 What is the symbol for SI unit of mole? How is the mole defined?

12 What will be the mass of one atom of C-12 in grams?

In the following questions two or more options may be correct.

13 Which of the following terms are unitless? (i) Molality (ii) Molarity (iii) Mole fraction (iv)

Mass percent

14 16 g of oxygen has same number of molecules as in (i) 16 g of CO (ii) 28 g of N2 (iii) 14

g of N2 (iv) 1.0 g of H2

15 Which of the following pairs have the same number of atoms? (i) 16 g of O2(g) and 4 g of

H2(g) (ii) 16 g of O2 and 44 g of CO2 (iii) 28 g of N2 and 32 g of O2 (iv) 12 g of C(s) and 23

g of Na(s)

16 Calculate the mass percent of calcium, phosphorus and oxygen in calcium phosphate

Ca3(PO4) 2.

In the following questions a statement of Assertion (A) followed by a statement of

Reason (R) is given. Choose the correct option out of the choices given below each

question

17 Assertion (A) : The empirical mass of ethene is half of its molecular mass.

Reason (R) : The empirical formula represents the simplest whole number ratio of various

atoms present in a compound. (i) Both A and R are true and R is the correct explanation of A.

(ii) A is true but R is false. (iii) A is false but R is true. (iv) Both A and R are false.

18 Assertion (A) : One atomic mass unit is defined as one twelfth of the mass of one carbon-

12 atom.

Reason (R) : Carbon-12 isotope is the most abundunt isotope of carbon and has been chosen

as standard. (i) Both A and R are true and R is the correct explanation of A. (ii) Both A and R

are true but R is not the correct explanation of A. (iii) A is true but R is false. (iv) Both A and

R are false.

19 . Assertion (A) : All isotopes of a given element show the same type of chemical

behaviour. Reason (R) : The chemical properties of an atom are controlled by the number of

electrons in the atom.

(i) Both A and R are true and R is the correct explanation of A. (ii) Both A and R are true but

R is not the correct explanation of A. (iii) A is true but R is false. (iv) Both A and R are false.

20 Assertion (A) : Black body is an ideal body that emits and absorbs radiations of all

frequencies.

Reason (R) : The frequency of radiation emitted by a body goes from a lower frequency to

higher frequency with an increase in temperature. (i) Both A and R are true and R is the

correct explanation of A. (ii) Both A and R are true but R is not the explanation of A. (iii) A

is true and R is false. (iv) Both A and R are false.

Biology

Q1 Define the following terms:

1 Phylum 2 Class 3 Family

Q2 Explain taxonomic hierarchy with suitable examples of a plant and an

animal.

Q3 What are zoological parks? What is the scientific purpose of them?

Q4 Write a short noteonArchaebacteria.

Q5 Give 6 chactersticts of phylum protozoa.

Q6 Give 4 characterstics of phylum dinoflagellata.

Q7 Explain reproduction in fungi.

Q8 What are lichen.

Q9 With the help of 4 characterstics compare the 4 classes of kingdom fungi.

Q10 What are zooplanktons?

Maths Chapter 1st (sets)- Exercise- 1.3 Q.no- 3,4,6,7 Exercise-1.4 Q.no.- 6 and 9. Exercise 1.5 Q.no- 4 and 5 Exercise- 1.6 Q.no.- 7 Miscellaneous- Q.no- 2,5,9 and 13 to 16. Chapter 12 (Three dimensional) Exercise 12.2 Q.no- 4 and 5 Exercise 12.3 Q.no- 2 and 3 Miscellaneous- Q.no- 4 to 6.

Business Studies

1. Make mind maps of –

(i) Nature and Purpose of Business

(ii) Forms of Business Organizations

2. Students are supposed to select one unit out of two and are required to

make only ONE project from the selected unit.

I. Project One: Case Study on a Product

Take a product having seasonal growth and regular demand –

For example,

Apples from Himachal Pradesh /Kashmir.

Oranges from Nagpur,

Mangoes from Maharashtra/U.P./Bihar/Andhra Pradesh etc.

Strawberries from Panchgani,

Aloe vera from Rajasthan,

Walnuts/almonds from Kashmir,

Jackfruit from South,

Guavas from Allahabad,

Pineapples from North East India,

Tea from Assam,

Orchids from Sikkim and Meghalaya,

Pottery of Manipur,

Fishes from coastal areas.

Students may develop a Case Study on the following lines:

(i) Research for change in price of the product. For example, apples in

Himachal Pradesh during plucking and non plucking season.

(ii) Effect on prices in the absence of effective transport system.

(iii) Effect on prices in the absence of suitable warehouse facilities.

(iv) Duties performed by the warehouses.

(v) Demand and supply situation of the product during harvesting season,

prices near the place of origin and away.

OR II. Project Two: Aids to Trade Taking any one AID TO TRADE, for

example Insurance, Warehousing, Communication, Banking,

Transportation etc.

Presentation of Project Report- The project report file of business studies

should be drafted in the following sequence by covering every detail-

The cover page should include the title of the Project, student information,

school, and year.

List of contents –

Project Must Have 20-25 Pages

The project should be Handwritten

Acknowledgments and preface (acknowledging the institution, the places

visited and the persons who have helped).

Introduction.

Topic with a suitable heading.

Planning and activities are done during the project if any.

Observations and findings of the visit.

Photographs (if any). Conclusions (summarized suggestions or findings,

the future scope of the study).

Appendix, bibliography

IT SHOULD BE AN INDEPENDENT AND SELF-DIRECTED PIECE OF

WORK.

Recommended Books (For Case Studies) –

Business Studies – Subhash Dey

Business Studies – Poonam Gandhi

Accountancy Prepare a Project file on Collection of source documents, preparation of vouchers, recording

of transactions with the help of vouchers.

2. Chap: 6 Accounting Equations: Do questions 22 to 29 ( Additional Questions)

Chap: 9 Journal – Do Questions 26 to 37. Economics The students are required to do a comprehensive study on any Economics

topic and do it in a project file. The size of the file should be A4.

The objectives of the project work are to enable learners to:

Probe deeper into theoretical concepts learnt in classes XI

Analyse and evaluate real world economic scenarios using theoretical

constructs and arguments

Demonstrate the learning of economic theory

Follow up aspects of economics in which learners have interest

Develop the communication skills to argue logically

The expectations of the project work are that:

Prepare in the form of PPT

It will be an independent, self-directed piece of study

Expected Checklist:

Introduction of topic/title

Identifying the causes, consequences and/or remedies

Various stakeholders and effect on each of them

Advantages and disadvantages of situations or issues identified

Short-term and long-term implications of economic strategies suggested

in the course of research

Validity, reliability, appropriateness and relevance of data used for

research work and for presentation in the project file

Presentation and writing that is succinct and coherent in project file

Citation of the materials referred to, in the file in footnotes, resources

section, bibliography etc.

Prepare a project on the basis of the suggestive lists:

Political Science

Make a project file on any one of the topics mentioned below

1. Indian Constitution

2. Indian Constitution as a Living Document

3. Philosophy of Indian Constitution

4. Political Theory

5. Liberty

6. Social Justice

7. Rights

8. Equality

9. Election and Representation

10. The Executive

Geography NOTE: Do all the work in separate file.

Map practice – (paste/draw) 1. INDIAN MAP PRACTICE

a) Highest rainfall area

b) Lowest rainfall area

c) Dras (lowest temperature area)

d) Place having highest temperature

e) Direction of south west monsoon

f) Direction of north east monsoon

g) Major Indian rivers

h) Plateus of India

i) Indian mountain

j) Thar desert

k) Physical division of India

l) Tropic of cancer

m) Indian standard meridian

n) Indian states and capitals

2. WORLD MAP

a) Important plates b)Ring of fire

3.ART INTEGRATED PROJECT (COMPULSORY )

a) Braches of geography based on region approach (pg.9)

b) Earth waves (pg. 23)

c) Earthquake shadow zone (pg.24)

d) Interior of earth (pg.26)

Collect information of any 3 geographical events occurred on the globe. Make a collage by using

pictures on chart.

Q4 Make a working model on any one of the following- Earthquake ,river system ,waterfall. etc

Q5. Draw a chart to show ( any 3)

a) Longitude and Latitudes b) Drainage pattern

c) Aneroid barometer d) Weather map

e) Rain gauge f) Wind wane

visit on following websites and links

https://www.learncbse.in Google Mapshttps://www.google.co.in › https://www.geography.org.uk/Full-list-of-project-ideas Use Atlas and Geography encyclopedia

Informatics Practices 1. Design a presentation on Computer Overview (Ch-1). Cover all the topics related to the chapter. 2. Write the features of Python. 3. Briefly explain some advantages and disadvantages of Python. 4. Write the brief introduction to Python.

Entrepreneurship

1. Select an entrepreneur in your vicinity and conduct an interview about his

overall journey as an entrepreneur. Prepare a report. The chosen

entrepreneur should be easily accessible, i.e., local entrepreneurs to be

approached.

OR

2. Pick an enterprise and find the growth history of the enterprise. Analyse the

various factors that contributed to the overall growth of the enterprise.

Prepare a report.

NOTE - The project report file of Entrepreneurship should be drafted in the

following sequence by covering every detail-

The cover page should include the title of the Project, student information,

school, and year.

List of contents –

Project Must Have 15-20 Pages

The project should be handwritten.

Acknowledgments and preface (acknowledging the institution, the places

visited and the persons who have helped).

Introduction.

Topic with a suitable heading.

Planning and activities are done during the project if any.

Physical Education Complete:

ch. 1st changing trends and career in physical education.

ch.2nd. Olympic value education.

Music Make a practical file of all definitions ,Talas, Life sketches, music elements ,knowledge of tanpura ,description and notations of raagas .

Fine Arts (painting and commercial art) all compositions ,posters and illustration topic given in class should be completed