The bob of a simple pendulum is a spherical hollow ball filled with water. A plugged hole near the bottom of the oscillation bob gets suddenly unplugged. During observation, till water is coming out, the time period of oscillation would
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first increase and then decrease to the original value.
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first decreased then increase to the original value.
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remain unchanged.
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increase towards a saturation value.
A.
first increase and then decrease to the original value.
First CM goes down and then comes to its initial position.