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A simple pendulum of time period T is su...

A simple pendulum of time period `T` is suspended above a large horizontal metal sheet with uniformly distributed positive charge. If the bob is given some negative charge , its time period of oscillation will be

A

`gt T`

B

`lt T`

C

`T`

D

proportional to its amplitude

Text Solution

Verified by Experts

The correct Answer is:
1


`T = 2 pi sqrt((l)/(g))`
`T' = 2pi sqrt((l)/(g - (sigma q)/(2m in_(0)))`
`T' gt T`
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