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26.(AIEEE 2002)

In a simple harmonic oscillator, at the mean position

A. kinetic energy is minimum, potential energy is maximum

B. both kinetic and potential energies are maximum

C. kinetic energy is maximum, potential energy is minimum

D. both kinetic and potential energies are minimum.

Correct Answer is Option (C)

K . E = 1 2 k ( A 2 − x 2 ) ; U = 1 2 k x 2

At the mean position x = 0

∴ K . E . = 1 2 k A 2 = Maximum and U = 0