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

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remain unchanged

increases towards a saturation value

first increase and then decrease to original value

first decrease and then increase to the original value

answer is C.

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Detailed Solution

We know that the time period of a simple pendulum is given by T=2πlg

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