The moment of inertia of the rectangular plate A B C D,(A B=2 B C) is minimum along the axis

Question

The moment of inertia of the rectangular plate A B C D,(A B=2 B C) is minimum along the axis (A) GH (B) EF (C) BC (D) AC

Tardigrade Admin · Accepted Answer

The distribution of mass about axis EF is minimum so radius of gyration is minimum and therefore moment of inertia is minimum about EF.

Q. The moment of inertia of the rectangular plate $A BC D, (A B = 2 BC)$ is minimum along the axis