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If a simple pendulum of length .1. is ab...

If a simple pendulum of length .1. is about to start to make SHM, when it is brought a position so that its length has maximum angular displacement .q.. If the mass of the bob is .m., then the maximum K.E at its mean position is

A

`(1)/(2)m((l)/(g))`

B

`(1)/(2)` mgl sin q

C

2mg l

D

`mgl(1-cos q)`

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The correct Answer is:
D
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