question_answer

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     AIEEE  Solved  Paper-2005

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

Correct Answer: A

Solution :

Situations are given in figures                                             Spherical hollow ball, and       The time period is first increases and then decreases to its original value.