Out of the given bodies ( of same mass) for which the moment of inertia will be maximum about the axis passing through its centre of gravity and perpendicular to its plane?
Text Solution
Verified by ExpertsThe correct answer is:
D
For disc, I = 
ma 2 For ring, I = ma 2
For square of side 2a
= 
[(2a) 2 + (2a) 2 ] = 
Ma 2
For square of rod of length 2a
I = 4 
= 
Ma 2
Hence, moment of inertia is maximum for square of four rods.
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