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Questions  

Two springs have their force constants as K1 and K2 (K1 > K2). The work done, when both are stretched by the same amount of length, will be :

a
equal
b
greater for K1
c
greater for K2
d
given data is incomplete

detailed solution

Correct option is B

W1=12K1x2    W2=12K2x2K1>K2    ⇒    W1>W2

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Similar Questions

Two similar springs P and Q have spring constants Kp and KQ such that Kp > KQ. They are stretched first by the same amount (case a), then by the same force (case b). The work done by the springs WP and WQ are related as, in case (a) and case (b), respectively.


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