A uniform semicircular disc of mass 'm' and radius 'R' is shown in the figure. Find out its moment of inertia about. (a) axis 'AB' ( shown in the figure 0 which passes through geometrical centre and lies in the plane of the disc (b) axis 'CD' which passes through its centre of mass and it is perpendicular to the plane of the disc.

A uniform semicircular disc of mass 'm' and radius 'R' is shown in the

1.	A uniform semicircular disc of mass 'm' and radius 'R' is shown in the figure. Find out its moment of inertia about. (a) axis 'AB' ( shown in the figure 0 which passes through geometrical centre and lies in the plane of the disc (b) axis 'CD' which passes through its centre of mass and it is perpendicular to the plane of the disc.
Answer» `(MR^2)/2-M((2R)/PI)^2` `(MR^2)/2-M((4R)/pi)^2` `(MR^2)/2+M((4R)/(3PI))^2` `(MR^2)/2+M((2R)/(pi))^2` Answer :B

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