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Physics · 2014
JEE Main 2014 · 2014-04-06 Offline · Q6
A bob of mass m attached to an inextensible string of length l is suspended from a vertical support. The bob rotates in a horizontal circle with an…
A bob of mass $\displaystyle m$ attached to an inextensible string of length $\displaystyle l$ is suspended from a vertical support. The bob rotates in a horizontal circle with an angular speed $\displaystyle \omega \mathrm{rad} / \mathrm{s}$ about the vertical. About the point of suspension :
Official answer
(3)
angular momentum changes in direction but not in magnitude.
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JEE Main 2014 Physics question, with the answer from NTA’s final answer key. Where our answers come from.