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With reference to Fig. of a cube of edge...

With reference to Fig. of a cube of edge a and mass m, state whether the following are true or false. (O is the centre of the cube.)

A

The moment of inertia of cube about `z` axis is `I_(z)=I_(x)+I_(y)`

B

The moment of inertia of cube about `z'` is `I'_(z)=I_(z)+ma^(2)`

C

The moment of inertia of cube about `z'` is `=I_(z)+(ma^(2))/3`

D

`I_(x)=(I_(y))/2`

Text Solution

Verified by Experts

The correct Answer is:
A
Theoram of perpendicular axes is applicable only for laminar (plane) objects. Thus, option (a) is false
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