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The angular momentum of a system of part...

The angular momentum of a system of particles is conserved

A

when no external force acts upon the system

B

when no external torque acts upon the system

C

when no external impulse acts upon the system

D

when axis of rotation remains same

Text Solution

Verified by Experts

The correct Answer is:
B
Torque, `tau=(dL)/(dt)` If `tau==0,L="constant"`
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Knowledge Check

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    direction of velocity changes
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