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If L is the angular momentum and I is th...

If L is the angular momentum and I is the moment of inertia of a rotating body, then `(L_(2))/(21)` represents

A

rotational potential energy

B

total energy

C

rotational kinetic energy

D

translational kinetic energy

Text Solution

Verified by Experts

The correct Answer is:
C
Angular momentum `=L=Iomega`
`therefore" "(L^(2))/(2I)=(I^(2)omega^(2))/(2I)=(1)/(2)Iomega^(2)`
`" = Rotational K.E. of the body"`
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