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Question: Answered & Verified by Expert
A mass is whirled in a circular path with constant angular velocity and its angular momentum is L. If the string is now halved keeping the angular velocity the same, the angular momentum is
PhysicsRotational MotionNEET
Options:
  • A L 4
  • B L 2
  • C L
  • D 2L
Solution:
2610 Upvotes Verified Answer
The correct answer is: L 4
L = mr2  ω. For given m and ω, L ∝ r2. If r is halved, the angular momentum L becomes one-fourth.

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