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
A
First increase and then decrease to the original value.
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B
First decreased then increase to the original value.
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C
Remain unchanged.
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D
Increase towards a saturation value.
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Solution
The correct option is A First increase and then decrease to the original value. The C. M. of the system moves away from the suspension point than back