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Two spheres of equal masses, one of whic...

Two spheres of equal masses, one of which is a thin spheical shelll and the other a solid, have the same moment of inertia about their respective diameters. The ratio of their radii well be

A

`5:3`

B

`3:5`

C

`sqrt5 : sqrt3`

D

`1:1`

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The correct Answer is:
C
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