A simple pendulum is made of bob which is a hollow sphere full of sand suspended by means of a wire.
A simple pendulum is made of bob which is a hollow sphere full of sand suspended by means of a wire. If all the sand is drained out, the period of the pendulum will
(a) increase
(b) decrease
(c) remain same
(d) become erratic
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Correct option (c) remain same
Explanation :
As initial and final distance of centre of mass from the point of suspension is same that is why the time period remains same.
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