Maths Question of the Day

Maths Question of the day: The line parallel to the x−axis and passing through the intersection of the lines ax + 2by + 3b = 0 and bx − 2ay − 3a = 0, where (a, b) ≠ (0, 0) is1) below the x−axis at a distance of 3/2 from it2) below the x−axis at a distance of 2/3 from it3) above the x−axis at a distance of 3/2 from it4) above the x−axis at a distance of 2/3 from it

Do you know friends that If you punch a series of holes in a paper cup filled with Water, the Water will squirt out farthest and fastest from the lowest holes. The reason is that Water Pressure is greatest at the bottom of the cup. For the same reason, dams are made thicker at the bottom than at the top.

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Chemistry Question of the day: During the process of electrolytic refining of copper, some metals present as impurity settle as ‘anode mud’ These are1) Sn and Ag2) Pb and Zn3) Ag and Au4) Fe and Ni

Physics Question of the day: A body A of mass M while falling vertically downwards under gravity breaks into two parts; a body B of mass 1/3 M and a body C of mass 2/3 M. The centre of mass of bodies B and C taken together shifts compared to that of body A towards1) depends on height of breaking2) does not shift3) body C4) body B

UPTU SEE 2012 Entrance Exam on 21st & 22nd April, 2012

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goiit.comHey Guys!!! As all of you that today is the special date 11.11.11 i.e. 11 nov 2011. So please share with us how you make this day special for you.

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Physics Question of the day: Carbon, silicon and germanium have four valence electrons each. At room temperature which one of the following statements is most appropriate?1) The number of free conduction electrons is significant in C but small in Si and Ge.2) The number of free conduction electrons is negligible small in all the three.3) The number of free electrons for conduction is significant in all the three.4) The number of free electrons for conduction is significant only in Si and Ge but small in C.

Integer Type Chemistry Question of the day: At 400K, the root mean square (rms) speed of a gas X (molecular weight = 40) is equal to the most probable speed of gas Y at 60K. The molecular weight of the gas Y at 60K. The molecular weight of gas Y is

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Mohammed Azharuddin ya exactly 4gms is the right answer

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goiit.com Yes 4 is the right answer

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Puzzle of the week: One boy has boxes in three sizes: large, medium, and small. He puts 11 large boxes on a table. He leaves some of these boxes empty, and in all the other boxes he puts 8 medium boxes. He leaves some of these medium boxes empty, and in all the other medium boxes he puts 8 (empty) small boxes. Now, 102 of all the boxes on the table are empty.How many boxes has he used in total?

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Ashwani Patel

Yes its 115Let :y is large leaved boxx is medium leaved box(empty box)... y + x + { (11-y)8-x}8 = 1029y + x=86.......... (1) (box used)11 + (11-y)8 + { (11-y)8 - x }8 = ?803 - 8(9y + x) = ?by eqution (1)115See More

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Amit Kumar Gautam Esme kya nice hai???bad question koi bi bta de answer!!!!!!!!!!****

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Giridhar Sanjay

Work Smart.....Not Hard.... :-)

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Physics Question of the day: A superconductor has Tc (0) = 100 K. When a magnetic field of 7.5 Tesla is applied, its Tc decreases to 75K. For this material, one can definitely say that when

1) B = 5 Tesla, Tc (B) = 80 K 2) B = 5 Tesla, 75 K < Tc (B) < 100 K3) B = 10 Tesla, 75 K < Tc (B) < 100 K4) B = 10 Tesla, Tc (B) = 70 K

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Pranav Girwalkar 2nd


Naaruto Uzumaaki =_=" jus commenting random answers ,,,,,,,i say 4 th option .........

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Do you know friends that you can only see a rainbow if have your back to the sun???

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Neha Chauhan How's reflection works der? Plz if any1 knows den give exp.



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Ashish Shrivastava ye toh apni 10th clas ki ncrt mai tha...;p..yad aa gya..hehe


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Integer type Maths Question of the day: The centres of two circles C1 and C2 each of unit radius are at a distance of 6 units from each other. Let P be the mid point of the line segment joining the centres of C1 and C2 and C be a circle touching circles C1 and C2 externally. If a common tangent to C1 and C passing through P is also a common tangent to C2 and C, then the radius of the circle C is

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Ankit Singh 4 units


goiit.com Right answer is 8


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Physics Question of the day: A large glass slab (μ = 5/3) of thickness 8 cm is placed over a point source of light on a plane surface. It is seen that light emerges out of the top surface of the slab from a circular area of radius R cm. What is the value of R?

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LikeUnlike · · Share · November 5 at 1:56pm ·

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Ankit Singh I do'nt know

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goiit.com Yes 6 is the right answer

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Energy is the essence of life. Every day you decide how you're going to use it by knowing what you want and what it takes to reach that goal, and by maintaining focus.

- Oprah Winfrey

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Chemistry Question of the day: Assuming that Hund’s rule is violated, the bond order and magnetic nature of the diatomic molecule B2 is1) 1 and diamagnetic2) 0 and diamagnetic3) 1 and paramagnetic4) 0 and paramagnetic

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Ankit Thakre okeiiz !!1


Neha Chauhan Explain how?


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Hey Guys!! As all of you know that CBSE has selected 22 cities for conducting AIEEE online and in these cities, there will be no traditional paper pencil format in these cities. There are some important points that every aspirant must keep in mind before taking AIEEE 2012 online. Read here http://bit.ly/vLXnI9

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Aaryan Choudhary Cn u tell me name of these cities


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Do you know friends that A bee sting is acidic and a wasp sting is alkali. To treat a sting by one of these you should use the opposite type of chemical.

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Nishant Bodhijani hmm amazing...

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Deepak Kumar Hello,goiit.how much rank i need to get civil stream in iit roorkee.i belongs to SC.


Shivam Awasthi whats the wasp?



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Giridhar Sanjay

It Does not matter how you start........... ..What it matters is How you finish it!See More

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Riddle of the day:

When I'm young I'm tallWhen I'm old I'm shortWhen I'm alive I glowBecause of your breath I dieWhat am I?

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Anand Narayanan cos a cigar glows while a candle illuminates


goiit.com Answer is candle


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Simran Sachdeva

John Smith: Why did the chicken cross the road?

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Albert Einstein: Whether the chicken crossed the road or the road crossed the chicken depends on your frame of reference.

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Maths Question of the day: The Probability that A speaks truth is 4/5, while this probability for B is 3/4. The probability that they contradict each other when asked to speak on a fact is

1) 3/202) 1/5


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3) 7/204) 4/5

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Chinmay Pisu 7/20


Ankit Singh 7/20




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Harman Dhindsa

couldnt make upto IIT2009.....one reason might be i never took coaching.......so now in Canada doing mechanical engineering technology........but i have seen we Indians are more hardworking in both studies and work......so keep up the hard work guys.....sometimes loging this page reminds me of my grade 12 class espically math , chem and phy..

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Physics Question of the day: A block of mass ‘m’ is connected to another block of mass ‘M’ by a spring (massless) of spring constant ‘k’. The blocks are kept on a smooth horizontal plane. Initially the blocks are at rest and the spring is unstretched. Then a constant force ‘F’ starts acting on the block of mass ‘M’ to pull it. Find the force on the block of mass ‘m’

1) mF/M2) (M + m)F/m3) mF/(m + M)4) MF/(m + M)

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Chinmay Pisu mM/(m+M)


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Shailesh Jawle its 3....


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"Learn from yesterday, live for today, hope for tomorrow."

- Albert Einstein

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Chemistry Question of the day: Among the following compounds, the most acidic is

1) p-nitrophenol2) p-hrdroxybenzoic acid3) o-hydroxybenzoic acid4) p-toluic acid

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Amit Anand it is (3) due to ortho effect

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goiit.com Yes 3rd option is right




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Kanwar Vipasha

MRE DOUBTS KON CLEAR KREGA ;(

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Kanwar Vipasha fo sure hehe


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IIST Admission Test (ISAT 2012) registration has started from today onwards till 31st Dec at IIST website. Entrance exam will held on Saturday 21st April, 2012 at 22 cities. For detailed information, please refer http://bit.ly/w1Tp8b

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Do you know friends that the Air around us is not weightless. In fact, it can be weighed almost as accurately as iron or lead. A column of Air 1 inch square and 600 miles high, for instance, weighs approximately 15 pounds, about twice as much as an average newborn baby. This weight is what creates the phenomenon known as "atmospheric pressure."

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Saurabh Singh thanx 4 d in4matin


Bhavesh Srivastava ghumaa fira ke byu bolte ho....ye bhi pata tha mujhe...



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The race to make it to the Indian Institutes of Technology (IIT) has begun. With registrations for the IIT- Joint Entrance Examination (JEE) opened to students from Monday, the competition has just begun to gather momentum. The exam, which will be held on April 8 next year, will have two methods of registration — the online method, which was opened on Monday and physical applications. Read more http://bit.ly/s5RiAq

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Physics Question of the day: A student performed the experiment of determination of focal length of a concave mirror by u-v method using an optical bench of length 1.5 meter. The focal length of the mirror used is 24 cm. The maximum error in the location of the image can be 0.2 cm. The 5 sets of (u,v) values recorded by the student (in cm) are: (42,56), (48,48), (60,40), (66,33), (78,39). The data set (s) that cannot come from experiment and is (are) incorrectly recorded, is (are)

1) (42, 56) 2) (48, 48)3) (66, 33)4) (78, 39)

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goiit.com Yes Right answer is 3 and 4


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Aman Mittal

Has anybody written today's brilliant tutorial's part test 5? If yes then please tell your scores. And tell subject wise marks also.

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Aditya Rb i have wrote and i got 70%


Aman Mittal tell me your score out of 480 and also tell subject wise marks.


Aditya Rb 330 marks

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Hi Friends, now goiit achieved 2000 fans!! Its amazing, thanks to all of you for being the part of goiit facebook page & making us what we are today. Keep continue to share knowledge with future aspirants...

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Ashwani Patel Congrates . and thanks 4 ur fastest xams notification updates.

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Hey Guys!! From today, online application process for IIT JEE 2012 has been started till 10 December, 2011. You can do online registration from its official website and also read important instructions before filling online forms. To know important dates about IIT JEE 2012, please refer http://bit.ly/uL5AmS

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Sujay Rastogi my dream

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Maths Question of the day: The line parallel to the x−axis and passing through the intersection of the lines ax + 2by + 3b = 0 and bx − 2ay − 3a = 0, where (a, b) ≠ (0, 0) is1) below the x−axis at a distance of 3/2 from it2) below the x−axis at a distance of 2/3 from it3) above the x−axis at a distance of 3/2 from it4) above the x−axis at a distance of 2/3 from it

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LikeUnlike · · Share · October 29 at 6:46pm ·

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Abhishek Gorai No.. many more cities are available in options frm WB

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Deepak Kumar Answer is (1)




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Do you know friends that If you punch a series of holes in a paper cup filled with Water, the Water will squirt out farthest and fastest from the lowest holes. The reason is that Water Pressure is greatest at the bottom of the cup. For the same reason, dams are made thicker at the bottom than at the top.

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Musaib Kirmani cool


Chweet Lıı'l Faııry nyc


Chweet Lıı'l Faııry hey mr admin may i know u ?


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Chemistry Question of the day: During the process of electrolytic refining of copper, some metals present as impurity settle as ‘anode mud’ These are1) Sn and Ag2) Pb and Zn3) Ag and Au4) Fe and Ni

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Varun Mishra Ag


goiit.com Right answer is 3rd option

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The IIT campus was buzzing with activity on the second day of its annual festival - Rendezvous. It seems though, that IIT-D has downgraded its annual festival celebrations from last year when Anushka Sharma and Ranveer Singh were present along with the Jia band. Read news here http://bit.ly/tDM35z

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Physics Question of the day: A body A of mass M while falling vertically downwards under gravity breaks into two parts; a body B of mass 1/3 M and a body C of mass 2/3 M. The centre of mass of bodies B and C taken together shifts compared to that of body A towards1) depends on height of breaking2) does not shift3) body C4) body B

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सु�ख औ’ सुमृ�द्धि� आपके� अं�गना� द्धि�लमिमृल�एँ�,दी�पके अंमृना के� चा�रों� दिदीशा�ओं मृ� जगमृग�एँ�ख�शिशायाँ�� आपके� द्वा�रों परों आकेरों ख�शा$ मृना�एँ�..दी�प�वल$ पव& के' आपके( ढे�रों� मृ�गलके�मृना�एँ�!

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The first preference of STUDENTS

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LikeUnlike · · October 24 at 5:41pm · €,´,€,´,水,? ,? d811419c6a4e4c AQAJUO7J {"actor":"1000027



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Riddle of the day:

You may enter, but you may not come in,I have space, but no room,I have keys, but open no lock.What am I?

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Pravin Singh Keyboard


Ajay Soni a keyboard


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Maths Question of the day: The mean and the variance of a binomial distribution are 4 and 2 respectively. Then the probability of 2 successes is

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1) 37/2562) 219/2563) 128/2564) 28/256

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Aman Sharma (4)28/256


goiit.com Yes Aman you are right. Right answer is 4)28/256


Shivam Singh 1,2and 3rd is rong



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Chemistry Question of the day: Consider the ground state of Cr atom (Z = 24). The number of electrons with the azimuthal quantum numbers I =1 and 2 are respectively(1) 12 and 4(2) 16 and 5(3) 16 and 4(4) 12 and 5

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Jagdish Mishra ya....4th option


goiit.com Yes 4th option is the right answer


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This is one of the much-awaited fests in the city. Rendezvous 2011, Indian Institute of Technology (IIT) Delhi’s annual fest, will witness a scale much grander than previous years. The fest, which will be flagged off on October 21 at 5pm, will come to a close on Monday. Read more http://bit.ly/p4GOWU

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Nihar Samantaray G8



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Physics Question of the day: A magnetic needle lying parallel to a magnetic field requires W units of work to turn it through 60°. The torque needed to maintain the needle in this position will be1) √3 W2) W3) (√3/2) W4) 2W

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goiit.com Right answer is 1st option


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Sunil Kavle I know you are right but answer my question The critical velocity (v) of a satellite depends upon the distance 'r' from centre of earth and acceleration due to gravity 'g'.by method of dimensions, obtain an expression for critical velocity. Send answer


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Do you know friends that there are only 3 sets of letters on a keyboard which are in alphabetical order (f g h, j k l, and o p)

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Straightedge Stanley Never Realized that.


Tinu Panda i also



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Anish Kumar I also


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Maths Question of the day: The number of seven digit integers, with sum of the digits equal to 10 and formed by using the digits 1, 2 and 3 only, is1) 552) 663) 774) 88

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goiit.com Yes Right answer is 3rd option


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For the first time ever, students appearing for the Indian Institute of Technology- Joint Entrance Examination (IIT-JEE) will know exactly how much they need to score to make it to the rank list.

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Score 10% per subject, make it to IIT rank list

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For the first time ever, students appearing for the Indian Institute of Technology- Joint Entrance Examination (IIT-JEE) will know exactly how much they need to score to make it to the rank list. In a decision taken by the IIT Joint Admission Board (JAB) on Tuesday, students will be

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Moon Walker Yeah...Gr8!!!



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Chemistry Question of the day: The reaction of P4 with X leads selectively to P4O6. The X is1) Dry O22) A mixture of O2 and N23) Moist O24) O2 in the presence of aqueous NaOH

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Master Kartik Is it 2???


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goiit.com Yes the right answer is 2nd option


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Physics Question of the day: Three concentric metallic spherical shells of radii R, 2R, 3R, are given charges Q1, Q2, Q3, respectively. It is found that the surface charge densities on the outer surfaces of the shells are equal. Then, the ratio of the charges given to the shells, Q1 : Q2 : Q3, is1) 1 : 2 : 32) 1 : 3 : 53) 1 : 4 : 94) 1 : 8 : 18

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8 people like this.

goiit.com Right answer is 2nd option


Kushashwa Ravi Shrimali sir please provide solution


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Riddle of the day: What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

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Master Kartik River


goiit.com Yes right answer is River




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Maths Question of the day: A signal which can be green or red with probability 4/5 and 1/5 respectively, is received by station A and then transmitted to station B. The probability of each station receiving the signal correctly is 3/4. If the signal received at station B is green, then the probability that the original signal was green is

1) 3/52) 6/73) 20/234) 9/20

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goiit.com Right answer is 3) 20/23


Sabarish Subramanian 20/23


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Do you know friends that Your brain uses approximately 20% of the total oxygen pumping around your body…and about 750ml of blood pumps through your brain every minute!

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Tinu Panda right,very good writting.thanks for the info.



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Rj Himayu Khan brain has also got lobes as : occipital lobe, frontal lobe , temporal lobe , olfactory lobe , for different activities like smelling, muscular activities,vision etc etc


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Physics Question of the day: A biconvex lens of focal length 15 cm is in front of a plane mirror. The distance between the lens and the mirror is 10 cm. A small object is kept at a distance of 30 cm from the lens. The final image is1) virtual and at a distance of 16 cm from the mirror2) real and at a distance of 16 cm from the mirror3) virtual and at a distance of 20 cm from the mirror4) real and at a distance of 20 cm from the mirror

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Chemistry Question of the day: The species which by definition has ZERO standard molar enthalpy of formation at 298 K is

A) Br2 (g)B) Cl2 (g)C) H2O (g)D) CH4 (g)

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What will be Time Period of a pendulum if it is hung on a free-fall Lift?A) InfiniteB) Zero


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C) Can't Say

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Maths Question of the day: A vertical lamp-post 6m high, stands at a distance of 2m from a wall, 4m high. A 1.5m tall man starts to walk away from the wall on the other side of the wall, in line with the lamp-post. The maximum distance to which the man can walk remaining in the shadow is

1) 3/2m2) 4m3) 5/2m4) 7/2m

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Chemistry Question of the day: Sodium thiosulphate is prepared by1) reducing Na2SO4 solution with H2S2) boiling Na2SO3 solution with S in alkaline medium3) neutralising H2S2O3 solution with NaOH4) boiling Na2SO3 solution with S in acidic medium

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Rupak Kumar 2. Is correct ans


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In 2009, a year before it went public, Coal India Limited started recruiting from an unusual catchment area. The public sector behemoth, the monopoly producer of coal in India, picked up management trainees from business and law schools as well as from cream of India's engineering colleges

Management trainees from IIT, IIM quit Coal India

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In 2009, a year before it went public, Coal India Limited started recruiting from an unusual catchment area. The public sector behemoth, the monopoly producer of coal in India, picked up management trainees from business and law schools as well as from cream of India's engineering colleges, the

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Physics Question of the day: A cube of mass M starts at rest from point 1 at a height 4R, where R is the radius of the circular track. The cube slides down the frictionless track and around the loop. The force which tracks exerts on the cube at point 2 is

1) Mg2) 2Mg3) 3Mg4) cube will not reach the point 2

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Sayan Mukherjee true where's point 2?????????nd aman how can u say d dirctn of normal reactn widout knowin d point 2 ???????


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Aman Sharma @Sayan....your answer is on this link....http://www.compadre.org/psrc/evals/ipo99ex1.pdf Q2 Point A is 1 and point B is 2...hopefully this will solve your queries


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Do you know friends that the coldest state of matter — Bose-Einstein Condensate superfluid — defies gravity and instead of flowing down, it flows upward.

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Maths Question of the day: The number of 3 × 3 non-singular matrices, with four entries as 1 and all other entries as 0, is(1) 5(2) 6(3) at least 7(4) less than 4

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Chemistry Question of the day: One mole of a symmetrical alkene on ozonolysis gives two moles of an aldehyde having a molecular mass of 44 u. The alkene is1) propene2) ethene3) 1–butene4) 2–butene

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Vivek Singh Sandhu Ans. 2-butene

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Hey Guys!!! We have interviewed Rachit Tripathi, one of IIT toppers, who is doing B.Tech from IIT kanpur in Mechanical Engineering. Let's see how he prepared for the IIT entrance exam and follow him to fulfill our dream come true for becoming an IITian. http://bit.ly/qq2iiM

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Riddle of the day:

You may enter, but you may not come in,I have space, but no room,I have keys, but open no lock.What am I?

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Maths Question of the day: The mean and the variance of a binomial distribution are 4 and 2 respectively. Then the probability of 2 successes is

1) 37/2562) 219/2563) 128/2564) 28/256

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Aman Sharma (4)28/256


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Chemistry Question of the day: Consider the ground state of Cr atom (Z = 24). The number of electrons with the azimuthal quantum numbers I =1 and 2 are respectively(1) 12 and 4(2) 16 and 5(3) 16 and 4(4) 12 and 5

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Jagdish Mishra ya....4th option


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This is one of the much-awaited fests in the city. Rendezvous 2011, Indian Institute of Technology (IIT) Delhi’s annual fest, will witness a scale much grander than previous years. The fest, which will be flagged off on October 21 at 5pm, will come to a close on Monday. Read more http://bit.ly/p4GOWU

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Nihar Samantaray G8


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Physics Question of the day: A magnetic needle lying parallel to a magnetic field requires W units of work to turn it through 60°. The torque needed to maintain the needle in this position will be1) √3 W2) W3) (√3/2) W4) 2W

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Sunil Kavle I know you are right but answer my question The critical velocity (v) of a satellite depends upon the distance 'r' from centre of earth and acceleration due to gravity 'g'.by method of dimensions, obtain an expression for critical velocity. Send answer


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Do you know friends that there are only 3 sets of letters on a keyboard which are in alphabetical order (f g h, j k l, and o p)

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Maths Question of the day: The number of seven digit integers, with sum of the digits equal to 10 and formed by using the digits 1, 2 and 3 only, is1) 552) 663) 774) 88

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For the first time ever, students appearing for the Indian Institute of Technology- Joint Entrance Examination (IIT-JEE) will know exactly how much they need to score to make it to the rank list.

Score 10% per subject, make it to IIT rank list

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For the first time ever, students appearing for the Indian Institute of Technology- Joint Entrance Examination (IIT-JEE) will know exactly how much they need to score to make it to the rank list. In a decision taken by the IIT Joint Admission Board (JAB) on Tuesday, students will be

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Moon Walker Yeah...Gr8!!!



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Chemistry Question of the day: The reaction of P4 with X leads selectively to P4O6. The X is1) Dry O22) A mixture of O2 and N23) Moist O24) O2 in the presence of aqueous NaOH

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Master Kartik Is it 2???


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Physics Question of the day: Three concentric metallic spherical shells of radii R, 2R, 3R, are given charges Q1, Q2, Q3, respectively. It is found that the surface charge densities on the outer surfaces of the shells are equal. Then, the ratio of the charges given to the shells, Q1 : Q2 : Q3, is1) 1 : 2 : 32) 1 : 3 : 5

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3) 1 : 4 : 94) 1 : 8 : 18

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Kushashwa Ravi Shrimali sir please provide solution




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Riddle of the day: What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

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Master Kartik River


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Maths Question of the day: A signal which can be green or red with probability 4/5 and 1/5 respectively, is received by station A and then transmitted to station B. The probability of each station receiving the signal correctly is 3/4. If the signal received at station B is green, then the probability that the original signal was green is

1) 3/52) 6/73) 20/234) 9/20

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goiit.com Right answer is 3) 20/23


Sabarish Subramanian 20/23



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Do you know friends that Your brain uses approximately 20% of the total oxygen pumping around your body…and about 750ml of blood pumps through your brain every minute!

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Tinu Panda right,very good writting.thanks for the info.


Rj Himayu Khan brain has also got lobes as : occipital lobe, frontal lobe , temporal lobe , olfactory lobe , for different activities like smelling, muscular activities,vision etc etc


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Physics Question of the day: A biconvex lens of focal length 15 cm is in front of a plane mirror. The distance between the lens and the mirror is 10 cm. A small object is kept at a distance of 30 cm from the lens. The final image is1) virtual and at a distance of 16 cm from the mirror

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2) real and at a distance of 16 cm from the mirror3) virtual and at a distance of 20 cm from the mirror4) real and at a distance of 20 cm from the mirror

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Prem Chand 2






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"One of the secrets of getting more done is to make a TO DO List every day, keep it visible, and use it as a guide to action as you go through the day."

- Alan Lakein

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Chemistry Question of the day: The species which by definition has ZERO standard molar enthalpy of formation at 298 K is

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A) Br2 (g)B) Cl2 (g)C) H2O (g)D) CH4 (g)

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What will be Time Period of a pendulum if it is hung on a free-fall Lift?A) InfiniteB) ZeroC) Can't Say

It is asked in my Board Exams...

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Maths Question of the day: A vertical lamp-post 6m high, stands at a distance of 2m from a wall, 4m high. A 1.5m tall man starts to walk away from the wall on the other side of the wall, in line with the lamp-post. The maximum distance to which the man can walk remaining in the shadow is

1) 3/2m2) 4m3) 5/2m4) 7/2m

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Chemistry Question of the day: Sodium thiosulphate is prepared by1) reducing Na2SO4 solution with H2S2) boiling Na2SO3 solution with S in alkaline medium3) neutralising H2S2O3 solution with NaOH4) boiling Na2SO3 solution with S in acidic medium

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Rupak Kumar 2. Is correct ans


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In 2009, a year before it went public, Coal India Limited started recruiting from an unusual catchment area. The public sector behemoth, the monopoly producer of coal in India, picked up management trainees from business and law schools as well as from cream of India's engineering colleges

Management trainees from IIT, IIM quit Coal India

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In 2009, a year before it went public, Coal India Limited started recruiting from an unusual catchment area. The public sector behemoth, the monopoly producer of coal in India, picked up management trainees from business and law schools as well as from cream of India's engineering colleges, the

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Physics Question of the day: A cube of mass M starts at rest from point 1 at a height 4R, where R is the radius of the circular track. The cube slides down the frictionless track and around the loop. The force which tracks exerts on the cube at point 2 is

1) Mg2) 2Mg3) 3Mg4) cube will not reach the point 2

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Sayan Mukherjee true where's point 2?????????nd aman how can u say d dirctn of normal reactn widout knowin d point 2 ???????


Aman Sharma @Sayan....your answer is on this link....http://www.compadre.org/psrc/evals/ipo99ex1.pdf Q2 Point A is 1 and point B is 2...hopefully this will solve your queries


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Do you know friends that the coldest state of matter — Bose-Einstein Condensate superfluid — defies gravity and instead of flowing down, it flows upward.

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Maths Question of the day: The number of 3 × 3 non-singular matrices, with four entries as 1 and all other entries as 0, is(1) 5(2) 6(3) at least 7(4) less than 4

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Nitin Labhishetty is the number of matrices 12?




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Chemistry Question of the day: One mole of a symmetrical alkene on ozonolysis gives two moles of an aldehyde having a molecular mass of 44 u. The alkene is1) propene2) ethene3) 1–butene4) 2–butene

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Vivek Singh Sandhu Ans. 2-butene

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Hey Guys!!! We have interviewed Rachit Tripathi, one of IIT toppers, who is doing B.Tech from IIT kanpur in Mechanical Engineering. Let's see how he prepared for the IIT entrance exam and follow him to fulfill our dream come true for becoming an IITian. http://bit.ly/qq2iiM

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Manoj Nayak there is no substitute for hardwork !!!


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Physics Question of the day: A diatomic ideal gas is used in a Car engine as the working substance. If during the adiabatic expansion part of the cycle, volume of the gas increases from V to 32V the efficiency of the engine is1) 0.52) 0.753) 0.994) 0.25

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Manoj Bajaj Can anybody tell me how



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Stop thinking about the past, and don't worry too much about what's going to happen in the future. Your presence is a present, so live for today, and appreciate everyone and everything you have. Stop thinking about what you don't have, what you wish you had, who walked out of your life, and whatever else that falls in that category. Think about what you have, who you have in your life, and how fortunate you are.

-Junethea Crystal Centeno

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Vijay Vishwakarma Bohot enjoy kr chuke life, ab future k bare m sochna jaruri ho gya he, wrna fir present enjoy krne ka reason ni milega :|


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Maths Question of the day: A focus of an ellipse is at the origin. The directrix is the line x = 4 and the eccentricity is 1/2. Then the length of the semi−major axis is

1) 8/32) 2/33) 4/34) 5/3

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Pranjal Tomar (1) 8/3


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The All India Engineering Entrance Examination (AIEEE) aspirants from Indore would face a tough time as the Central Board of Secondary Education (CBSE) has decided to conduct the 2012 online exam only in Bhopal. There was no allotment of centre in Indore despite it being the major education hub of the state.Read more http://bit.ly/rpM85s

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Abhijeet Dutt Pandey That's not fine.


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Chemistry Question of the day: Which of the following statements is incorrect regarding physissorptions ?(1) It occurs because of vander Waal’s forces.(2) More easily liquefiable gases are adsorbed readily.(3) Under high pressure it results into multi molecular layer on adsorbent surface.(4) Enthalpy of adsorption ( ∆H adsorption ) is low and positive.

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Ashif Ismail bt luck nxt time insha allah




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Sai Santosh

option 4

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LikeUnlike · · October 15 at 11:39am ·

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Physics Question of the day: In an optics experiment, with the position of the object fixed, a student varies the position of a convex lens and for each position, the screen is adjusted to get a clear image of the object. A graph between the object distance u and the image distance v, from the lens, is plotted using the same scale for the two axes. A straight line passing through the origin and making an angle of 45 degree with the x-axis meets the experimental curve at P. The coordinates of P will be

1) (2f, 2f)2) (f/2, f/2)3) (f, f)4) (4f, 4f)

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Ashwani Patel Thanx injamul


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The Supreme Court has refused to interfere with the ranking and selection process adopted for the prestigious IIT-JEE entrance exams saying there was no arbitrariness or ulterior motives in fixing the methodology. For more information, please visit http://bit.ly/qyhLXS

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Maths Question of the day: If X is a binomial variate with the range {0,1,2,3,4,5,6} and P{X=2} = 4P{X=4}, then the parameter p of X is

1) 1/32) 1/23) 2/34) 3/4

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goiit.com @aman your answer is correct. Right answer is 1st option


goiit.com @Gaurav this question is for BITSAT



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Chemistry Question of the day: The synthesis of crotonaldehyde from acetaldehype is an example of ....... reaction.

1) nucleophilic addition2) elimination3) electrophilic addition4) nucleophilic addition elimination

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Avshish Dubey 4


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There are no secrets to success. It is the result of preparation, hard work learning from failure.

~ General Colin Powell

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Pranav Narayanabhatla need that key


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Physics Question of the day: A body of mass 5 kg makes an elastic collision with another body at rest and continues to move in the original direction after collision with a velocity equal to 1/10th of its original

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velocity. Then the mass of the second body is

1) 4.09 kg2) 0.5 kg3) 5 kg4) 5.09 kg

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The state education department lowered one more eligibility criteria for admission in professional courses. This time around, the qualifying percentage for diploma students seeking admission in degree engineering course has been lowered from 50% to 45%.

Bar lowered further to fill engg seats

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The state education department lowered one more eligibility criteria for admission in professional courses. This time around, the qualifying percentage for diploma students seeking admission in degree engineering course has been lowered from 50% to 45%.

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Aryan Malhotra thankr


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Radhey Mohan they r making india a hub of useless engineers....


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Maths Question of the day: The area (in square unit) of the circle which touches the lines 4x + 3y = 15 and 4x + 3y = 5 is 1) 4 pi2) 3 pi3) 2 pi4) pi

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http://www.facebook.com/dhirender.mathematics.kumar





goiit.com Yes right ans is 4th option


Rajan Chauhan question is wrong




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The Supreme Court has praised the efforts put in by Rajeev Kumar, professor of computer science, IIT Kharagpur, in improving the Joint Entrance Examination system and said that he would be "one of the many unsung heroes" who did so. Read full news here http://bit.ly/oCwvHb

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Chemistry Question of the day: For a first order reaction at 27 degree Celsius, the ratio of time required for 75% completion to 25% completion of reaction is

1) 3.02) 2.3033) 4.84) 0.477

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goiit.com Yes right answer is 3


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Physics Question of the day: Two identical piano wires have a fundamental frequency of 600 cycle per second when kept under the same tension. What fractional increase in the tension of one wires will lead to the occurrence of 6 beats per second when both wires vibrate simultaneously?

1) 0.012) 0.023) 0.034) 0.04

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goiit.com Yup!! Right answer is 2


Rohit Kumar Giri Oh yes yes..


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Do you know guys that Aluminium is the most common metal in the Earth's crust (8 percent of its weight.)

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Maths Question of the day: Let A(h, k), B(1, 1) and C(2, 1) be the vertices of a right angled triangle with AC as its hypotenuse. If the area of the triangle is 1, then the set of values which ‘k’ can take is given by1) {1, 3}2) {0, 2}3) {−1, 3}4) {−3, −2}

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Radhey Mohan ans is {-1,3}


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Hey Guys!! There is a stepwise IIT JEE preparation master plan shared by one of IIT topper. This article will help you to know how you can get success in the entrance by preparation in just 6 months. So follow them. Hope you will get benefit from this plan!

Successful IIT JEE 2012 Stepwise Master Plan

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Guys must know how to prepare stepwise to crack iit jee 2012, tips & tricks, NCERT books to JEE Study 2012, Take care of the minutes & the hours, readymade jee 2012 preparation strategy followed by an IIT entrance topper..

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Aaryan Choudhary Plz tell me some special for iit jee at this number 08909754286


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Chemistry Question of the day: Among the following, the intensive property is (properties are)

1) Molar conductivity2) Electromotive force3) Resistance4) Heat capacity

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goiit.com Right options are 1 and 2




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Physics Integer type Question of the day: Two spherical bodies A (radius 6 cm) and B (radius 18 cm) are at temperatures T1 and T2 respectively. The maximum intensity in the emission spectrum of A is at 500 nm and in that of B is at 1500 nm. Considering them to be black bodies, what will be the ratio of the rate of total energy radiated by A to that of B?

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goiit.com Right answer is 9

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The victory of success is half won when one gains the habit of setting goals and achieving them. Even the most tedious chore will become endurable as you parade through each day convinced that every task, no matter how menial or boring, brings you closer to fulfilling your dreams

~ Og Mandino

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Mohd Muzammil Shaikh ofcourse true hai yar


Abhishek Singh Truly false.



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Maths Question of the day: A and B are two like parallel forces. A couple of moment H lies in the plane of A and B and is contained with them. The resultant of A and B after combining is displacedthrough a distance 1) 2H/A-B2) H/A+B3) H/2(A+B)4) H/A-B

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Kaiful Wara option(2)


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Chemistry Question of the day: The smallest ketone and its next homologue are reacted with NH2OH to form oxime.1) Two different oximes are formed2) Three different oximes are formed3) Two oximes are optically active4) All oximes are optically active

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Kaiful Wara option 2.


goiit.com Yes you all are right. Right answer is 2nd option



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Brain Teaser Question of the week: There are three circles. In each of the circles, there are numbers that have a common connection. So you have to discover the connection between the numbers and find out the missing number.

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Sanjaya Kumar Nayak 40


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Physics Question of the day: In a dark room with ambient temperature T0, a black body is kept at a temperature T. Keeping the temperature of the black body constant (at T), sunrays are allowed to fall on the black body through a hole in the roof of the dark room. Assuming that there is no change in the ambient temperature of the room, which of the following statement(s) is/are correct?1) The quan...tity of radiation absorbed by the black body in unit time will increase.2) Since emissivity = absorptivity, hence the quantity of radiation emitted by black body in unit time will increase.3) Black body radiates more energy in unit time in the visible spectrum.4) The reflected energy in unit time by the black body remains same.See More

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goiit.com All options are correct


Aaryan Choudhary U r genius aman



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