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A hollow sphere filled with water throug...

A hollow sphere filled with water through a small body in it is then hung by a long theard and made to oscilation As the water slowly force end of the hole at the bottom the period of oscilation will

A

continuously decrease

B

continuously increase

C

first decrease then increase

D

first increase then decrease

Text Solution

Verified by Experts

The correct Answer is:
D
The time period of the pendulum
`T = 2pisqrt(//g)`
`rArr T prop sqrt(l)`
Hence, the effective length of the pendulum first increases and then decreases.
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