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Is the oscillation of a simple pendulum ...

Is the oscillation of a simple pendulum at the centre of the earth be possible?

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No, because the value of g at the centre of earth is zero and hence, in periodic time
`T= 2pi sqrt((l)/(g))" now put "g= 0`
`therefore T= 2pi sqrt((l)/(0))=" infinite "`
Means oscillation does not occurs.
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