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A pendulum consists of an inextensible t...

A pendulum consists of an inextensible thread connected to a solid spherical ball of radius r. The distance between the point of suspension and the centre of the ball is `L (gt gt r)` . Calculate the percentage difference in the time period of this pendulum to the time period of a simple pendulum of length L. How large is this difference for r = 5 cm and L = 100 cm.

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The correct Answer is:
`(20r^(2))/(L^(2)) %; 0.05 %`
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