Two springs P and Q of force constants kP and kQ(kQ=kP2) are stretched by applying forces of equal magnitude. If the energy stored in Q is E, then the energy stored in P is
A
E
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B
E8
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C
E4
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D
E2
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Solution
The correct option is DE2 U=12kx2Up=12kpx2pUQ=12kQx2Q