MHT CET 2022 Physics question
A mass tied to a string is whirled in a horizontal circular path with a constant angular velocity and its angular momentum is L. If the string is now halved, keeping angular velocity same, then the angular momentum will be
Answer: (B)
Solution
Angular momentum of the mass moving in a circle is . The radius of the circle equals the string length. With the same and , . When the string is halved, \frac$
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