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Pendulum after some time becomes slow in...

Pendulum after some time becomes slow in motion and finally slopes due to :

A

air friction

B

mass of pendulum

C

earth's gravity

D

none of these.

Text Solution

Verified by Experts

The correct Answer is:
A
Due to air friction the energy of pendulum keeps on decreasing and hence its amplitude also keeps on decreasing.
Correct choice is (a).
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