A) \[\sqrt{2gl}\]
B) \[\sqrt{5gl}\]
C) \[\sqrt{3gl}\]
D) \[\sqrt{mgl}\]
Correct Answer: C
Solution :
From law of conservation of energy Potential energy of fall = rotational kinetic energy Potential energy of fall \[=\frac{1}{2}mgl\] ... (i)You need to login to perform this action.
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