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Q.

Two springs have their force constant as k1 and k2(k1 > k2). When they are stretched by the same force

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a

No work is done in case of both the springs

b

Equal work is done in case of both the springs

c

More work is done in case of second spring

d

More work is done in case of first spring

answer is C.

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Detailed Solution

W = F22kIf both springs are stretched by same force then W is directly proportional to 1kAs k1 > k2 therefore W1 < W2i.e., more work is done in case of second spring.
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