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A particle is executing a simple harmonic motion of amplitude 'a'. Its potential energy is maximum when the displacement from the position of the maximum kinetic energy is

1. 0
2. ±a
3. ±a/2
4. −a/2

Correct answer: ±a

Solution

In simple harmonic motion, the potential energy is maximum when the displacement is at its maximum amplitude, ±a, because all the energy is stored as potential energy at the extreme positions.

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