A body having its centre of mass at the origin has three of its particles at `(a,0,0), (0,a,0),(0,0,a).` The moments of inertia of the body about the X and Y axes are 0.20 kg `-m^2` each. The moment of inertia about the Z-axis

Options

A. `is 0.20 kgm^2`
B. `is 0.40 kg m^2`
C. `is 0.20 sqrt2kg-m^2`
D. cannot be deduced with this information.

Answer

D