The moment of inertia of a uniform semicircular wire of mass M and radius r about a line perpendicular to the plane of the wire through the centre is
The moment of inertia of a uniform semicircular wire of mass M and radius r about a line perpendicular to the plane of the wire through the centre is
(a) Mr 2
(b) 1/2Mr2
(c) 1/4 mr2
(d) 2/5 mr2.
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(a) Mr2
Explanation:
Since the mass of the wire is at a distance r away from the axis. Hence the option (a).
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