Q.

The diagram shows a uniform disc of mass M and radius 'a'. If the moment of inertia of the disc about the axis XY is I, its moment of inertia about an axis through O and perpendicular to the plane of the disc is:

Moderate

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By Expert Faculty of Sri Chaitanya

a

I+12Ma2

b

I+14Ma2

c

2I

d

I2

answer is 1,3.

(Detailed Solution Below)

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Detailed Solution

I=Ma24+Ma24=Ma22I0=IC+Ma222=Ma22+Ma22=Ma2=2II0=I+Ma22
ctaimg
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