Questions  

The moment of inertia of a uniform semicircular disc of mass M and radius r about a line perpendicular to the plane of the disc through the centre is 
 

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By Expert Faculty of Sri Chaitanya
a
(1/4)Mr2
b
(2/5) Mr2
c
(1/2)Mr2
d
Mr2
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detailed solution

Correct option is C

We know that the moment of inertia of a circular disc about an axis perpendicular to the plane of disc and passing through centre is  (1/2) Mr2. For semi-circular discI=1212(2M)r2=12Mr2

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One quarter sector is cut from a uniform circular disc of radius R. This sector has mass M. It is made to rotate about a line perpendicular to its plane and passing

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