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Grade 12Most Scoring Topics in IIT JEE

Help me on doing the questions please and also thanks in advance for answering my problem.

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Profile image of Prasham
8 Years agoGrade 12
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1 Answer

Profile image of Vikas TU
6 Years ago
E = 2k*Lambda /r 
W = -q integration from r1 to r2  E.dr 
W = 2kq*Lambda ln(r1/r2)
W = 2kq*Lambda ln(3a/2a)
Hence option A is correct.
Good Luck