A particle executes \( \mathrm{SHM} \) on a line \( 8 \mathrm{~cm} \) long. Its \( \mathrm{P} \)...

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A particle executes \( \mathrm{SHM} \) on a line \( 8 \mathrm{~cm} \) long. Its
\( \mathrm{P} \) K.E. and P.E. will be equal when its distance from the mean position is :
(1) \( 4 \mathrm{~cm} \)
(2) \( 2 \mathrm{~cm} \)
(3) \( 2 \sqrt{2} \mathrm{~cm} \) (4) \( \sqrt{2} \mathrm{~cm} \)
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