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1 Answers

Badiuddin askIITians.ismu Expert
148 Points
13 years ago

Dear Chandrakesh Shukla

Given F=k/r2

F=-dU/dr 

 so  k/r=-dU/dr

      abdU = -abk/r2 dr

      Ub - Ua  = k[1/b - 1/a]

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