When a pendulum oscillates, it comes to rest after sometime because :
A
energy lost by pendulum to overcome friction is gained by pendulum
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B
energy lost by pendulum to overcome its speed is gained by surrounding
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C
energy lost by pendulum to overcome friction is gained by surrounding
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D
energy lost by pendulum to overcome friction is gained by surrounding and pendulum
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Solution
The correct option is D energy lost by pendulum to overcome friction is gained by surrounding When a pendulum oscillates, it comes to rest after sometime because energy lost by pendulum to overcome friction is gained by surrounding. Hence total energy of pendulum and surrounding system remains conserved.