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Questions  

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
remain unchanged
b
increases towards a saturation value
c
first increase and then decrease to original value
d
first decrease and then increase to the original value

detailed solution

Correct option is C

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

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