Question 18. The moment of inertia of a uniform semicircular disc of mass M and radius about a line perpendicular to the plane of the disc through the centre is (a) (2/5) Mr² (b) (1/4) Mr power 2 (c) (1/2) Mr² (d) Mr² Answer
Correct option is D) A circular disc will have 2 times the mass of the semicircular disc. Moment of inertia of circular disc of mass 2M is ......Moment of inertia of semi-circular disc is half of the Moment of inertia of circular disc due to symmetry.
