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Rotational Motion question

2014 · Shift 0 · Q70
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Rotational Motion question

2014 · Shift 0 · Q70

JEE MainPhysicsRotational MotionMCQ+4 / −1
A bob of mass mmm attached to an inextensible string of length lll is suspended from a vertical support. The bob rotates in a horizontal circle with an angular speed ω rad/s\omega \,rad/sωrad/s about the vertical. About the point of suspension:
  1. A
    angular momentum is conserved
  2. B
    angular momentum changes in magnitude but not in direction.
  3. C
    angular momentum changes in direction but not in magnitude.
  4. D
    angular momentum changes both in direction and magnitude.
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