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Simple Pendulum

What would be...

Question

What would be the time period of a simple pendulum at the centre of earth?

A

Zero

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B

Non- zero

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C

Infinite

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D

Can't be determined

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Solution

The correct option is C
Infinite

T = 2π√(l/g)
But, at the centre of earth, g = 0. So, the value of time period would be infinite at the centre of earth.

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