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# This note has been used to help create the KVPY Exam Preparation wiki

Hello everybody!

I've qualified KVPY Stage-1 and it's stage-2 i.e interview round is on 2nd Feb. I just needed some help from you guys regarding what type of questions may be asked from subjects- Physics , Chemistry and Mathematics.

Example: What happens to the time period of a simple pendulum when a small hole is made at the bottom of the bob filled with water?

Answer: Center Of Gravity shift down due to the leak and thus the effective length increases. Thus, the time period first increases and then goes back to its initial value.

PS: Questions regarding deep understanding of topics are most welcome!

Thanks!

Note by Priyansh Sangule
2 years, 4 months ago

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d\dx(x+x+x+.....x times)=d\dx(x^2)=2x d\dx(x)+d\dx(x)+......=1+1+1+......x times =x ??????????? · 2 years, 4 months ago

HEY PRIYANSH I HAVE MY INTERVIEW ON 17 PLEASE POST YOUR EXPERIENCE IN THIS (OR OTHER ) NOTE . PLS · 2 years, 4 months ago

CHEMISTRY Questions · 2 years, 4 months ago

Here I go.

(IME 2013) Draw the structural formulas of all possible benzene-derived compounds such that: i) 1 mole of the compound has 16 g rams of oxygen and 7 moles of carbon; ii) carbon corresponds to 77,78% of the compound's mass; iii) in 21,6 grams of the compound there is 1,6 gram of hydrogen. · 2 years, 4 months ago

anisole and cresol · 2 years, 4 months ago

MATHEMATICS Questions · 2 years, 4 months ago

PHYSICS Questions · 2 years, 4 months ago

Can negative mass exist? and yeah Congratulations. · 2 years, 4 months ago

Let me make a guess? Is negative mass a hypothetical concept? And yeah, thanks! :D · 2 years, 4 months ago

yes. And it is used to speculate about other hypothetical concepts such as wormholes. · 2 years, 4 months ago

Cool! · 2 years, 4 months ago

Hello sir I am in class 12th and my classes are just started , I want to ask I have to give kvpy before my final 12 th class exam or after the 12 th class final exam . · 1 month, 1 week ago

guys i have my interview next week can you help me out??? · 1 year, 4 months ago