A circular disc rotates at n rpm. The angular velocity of a circular – McqOptions

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1.	A circular disc rotates at n rpm. The angular velocity of a circular ring of same mass and radius as the disc and to have the same angular momentum is
A.	n rpm
B.	n/2 rpm
C.	n/4 rpm
D.	2n rpm
Answer» C. n/4 rpm

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