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A simple pendulum of length 1 m has mass...

A simple pendulum of length 1 m has mass 2 gm and oscillates freely with amplitude 1 cm. What is it's potential energy at extreme position. `(g=9.8 m//s^2)`

A

`9.8 xx 10^-7 J`

B

`9.8 xx 10^-8 J`

C

`9.8 xx 10^-6 J`

D

`9.8 xx 10^-5 J`

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The correct Answer is:
A
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