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A simple pendulum oscillates in a vertic...

A simple pendulum oscillates in a vertical plane. When it passes through the mean position, the tension in the string is `3` times the weight of the pendulum bob.what is the maximum displacement of the pendulum with respect to the vertical

A

`30^(@)`

B

`45^(@)`

C

`60^(@)`

D

`90^(@)`

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The correct Answer is:
D
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