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Q.

Illustrated below is a uniform cubical block of mass M and side a. Mark the correct statement(s).

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a

The moment of inertia about axis B, which bisects one of the cube faces is IB=512Ma2

b

The moment of inertia about axis C, along one of the cube edges is  IC=23Ma2

c

The moment of inertia about axis D, which bisects one of the horizontal cube faces is 712Ma2

d

The moment of inertia about axis A, passing through the centre of mass is IA=16Ma2

answer is A, B, C.

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Detailed Solution

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Parallel Axis theorem, check the distance carefully.

ID=IB (symmetric)

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