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Eamcet Physics
1 st Year : Unit 5.1( Motion of System of Particles And Rigid Body ) -Centre of Mass

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Q.

A thin disc rotates about an axis passing through its centre and perpendicular to its plane with a constant angular velocity '' I is the moment of inertia of that disc and 'L' is its angular momentum about the given axis. Then rotational kinetic energy of the disc 'E' is
A) E α L2     
B) E α L–2   
C) E α I    
D)E α I–1(if L constant)

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Correct choice: D

Explanation:

None
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