A disc is free to rotate about a smooth horizontal axis passing through its center of mass. A particle is fixed at the top of the disc. A slight push is given to the disc and it starts rotating. During the process,

Text Solution
Verified by ExpertsThe correct answer is:
A
Angular momentum will not remain conserved due to the torque produced by weight of
particle acting about axis of rotation. Hence, only mechanical energy is conserved.
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