PhysicsA mass is whirled in a circular path with an angular momentum L. If the length of string and angular velocity, both are doubled, the new angular momentum is

A mass is whirled in a circular path with an angular momentum L. If the length of string and angular velocity, both are doubled, the new angular momentum is

  1. A

    L

  2. B

    4L

  3. C

    8L

  4. D

    16L

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    Solution:

    We know, angular veloctiy is

    L==(ML2)ω 

    L' = M(2L)2 ×(2ω) = 8(ML2)ω 

    L' = 8L

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