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Question: A long spring is stretched by x cm its PE is U. If the spring is stretched by Nx cm the PE stored in...

A long spring is stretched by x cm its PE is U. If the spring is stretched by Nx cm the PE stored in it will be –

A

U / N

B

N U

C

N2U

D

U / N3

Answer

N2U

Explanation

Solution

U = ;

U' = = =UN2