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The bob of a simple pendulum is a spheri...

The bob of a simple pendulum is a spherical hollow ball filled with water. A plugged hole near the bottom of the oscillating bob gets suddenly unplugged. During observation, till water is coming out, the time period of oscillation would

A

first increase and then decrease to the original value

B

first decrease and then increase to the original value

C

remain unchanged

D

increase towards a saturation value.

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