MHT CET Physics question
A thin circular ring of mass 'M' and radius 'r' is rotating about its axis with an angular speed ''. Two particles each of mass 'm' are now attached at diametrically opposite points. The angular speed of the ring will become [MHT-CET 2021, MHT-CET 2021]
Answer: (A)
Solution
Angular momentum is conserved: , so ; (b) and
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