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One solid sphere A and another hollow sphere B are of same mass and same outer radii. Their moment of inertia about their diameters are respectively IA and IB such that ?

One solid sphere A and another hollow sphere B are of same mass and same outer radii. Their moment of inertia about their diameters are respectively IA and IB such that ?

Grade:12

2 Answers

Thakshayini
35 Points
4 years ago
Moment of inertia ( I ) for solid sphere = 2/5 MR2
Then ( I ) for hollow sphere = 2/3 MR2
 By comparing these: I for solid sphere is lesser then I for hollow sphere.
NIMISHA
11 Points
4 years ago
Moment of inertia of  solid sphere A is 2/5 Mr^2
about  diameter is 2/10 Mr^2
Moment of inertia of hollow sphere B  about diameter 2/6MR^2
hence Ia/Ib=3r/5R

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