The moment of inertia of a semicircular ring about an axis, passing through the center and perpendicular to the plane of ring, is 
MR 2 , where R is the radius and M is the mass of the semicircular ring. The value of x will be________.
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The moment of inertia of a semicircular ring about a line perpendicular to the plane of the ring and passing through its centre is given as I= MR 2 , where m and R are the mass and radius of the ring. Comparing the given value
I = MR 2 = 
MR 2 
x= 1
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