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Questions  

The KE and PE of a particle executing SHM with amplitude A will be equal when its displacement is

a
A2
b
A2
c
A2
d
A23

detailed solution

Correct option is C

K = 12mω2(A2-y2)       U = 12mω2y2       K = U or 12mω2(A2-y2) = 12mω2y2i.e., 2y2 = A2 or y = A2

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