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Questions  

For the particle executing SHM of the displacement x is given by x = A cos wt.           

Identify which represents variation of potential energy as a function of time t and   displacement x.

a
I, III
b
II, IV
c
II, III
d
I, IV

detailed solution

Correct option is A

given displacement x=Acosωt potential energy=PE=12mω2x2 PE=12mω2A2cos2ωtThat is at t = 0 potential energy is maximum and potential energy a x2. So curves  I and II are correct

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