Q.

The moment of inertia of two spheres of equal masses about their diameters are the same. One is hollow, then ratio of their diameters

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a

1:5

b

1:5

c

π:1

d

5:3

answer is D.

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Detailed Solution

M.I. of solid sphere about diameter =25mr2M.I. of hollow sphere about diameter =23mr2
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