Questions related to "IIT JEE"

A uniform rod of length 2m and mass 5 kg is lying on a horizontal surface. The work done in raising one end of the rod with the other end in contact with (Read More)

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I wanted to crack only JEE mains not Advance . Hence I didn't get any idea how to study also what is passing criteria for OBC candidate.
Please guide (Read More)

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i am studying 12th standard now,as i was not so familier with all the engneering exams i did not study well in my 11th class.This year i am going to attend (Read More)

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What is the ratio of the volumes occupied by 1 mol of O2 and 1 mole of O3 in identical conditions?

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Can i know excat syllabus of physics for jee exam 2017?

Hi Pranay! The JEE 2017 syllabus is most probably going to be the same as that of the 2016 exam. Year to year, there's not much variation, and the general theme of the paper remains the same, unlike the pattern of the JEE Paper, which is highly variable. The syllabus for the exam (physics section) is the following General: Units and dimensions, dimensional analysis; least count, significant figures; Methods of measurement and error analysis for physical quantities pertaining to the following experiments: Experiments based on using vernier calipers and screw gauge (micrometer), Determina... (read more)

Q : if f:R--->R such that f(x)f(y) – f(xy) = x+ y where x,y belongs to R . find f(0) where f(0) is not equal to zero and hence find f(7)

Put x=0 and y=0 in the given equation. Get [f(0)]^2-f(0)=0 or f(0) [f(0) -1] =0, now since f(0) !=0, f(0) = 1. now put x=0 and y=7, to get f(7) = 8.
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Q : if f:Z---->Z such that f(0)=1 & f(f (n) ) = f( f( n+2) +2) = n for all n belongs to Z . find f(2).

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A tank raised at higher level filled with water is connected to an empty one at lower level in space. Will the lower tank get filled with water? why?

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Why tropylium ion is more stable than triphenyl carbocation?

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