Question:
Four point masses, each of value $m$, are placed at the corners of a square $A B C D$ of side $\ell$. The moment of inertia of this system about an axis passing through $A$ and parallel to $B D$ is
$2 m \ell^{2}$
$\sqrt{3} m \ell^{2}$
$3 m \ell^{2}$
$m \ell^{2}$
Question of from chapter.
JEE Main Previous Year 2006
Correct Option: 3
Solution:
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