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A simple pendulum is made of bob which i...

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

remian same

D

become erratic

Text Solution

Verified by Experts

The correct Answer is:
C
`l` in the equation `T = 2pi sqrt ((l)/(g))` is measured from centre of mass and center of mass in both cases remains at same location.
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DC PANDEY-SIMPLE HARMONIC MOTION-Level 1 Single Correct
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