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MHT CET Physics question

PhysicsSystems of Particles and Rotational MotionMHT CET

A mass attached to massless spring is whirled in a circular path with constant angular velocity and its angular momentum is L. If the spring is halved keeping the velocity the same the angular momentum is :

Answer: (A)

Solution

With the angular velocity unchanged , so halving the radius gives ; L and 2L

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Question ID VK-040390