A circular disc of radius and thickness has moment of inertia about an axis passing through its centre and perpendicular to its plane. It is melted and recasted into a solid sphere. The moment of inertia of the sphere about its diameter as axis of rotation is |
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a) |
b) |
c) |
d) |

A circular disc of radius and thickness has moment of inertia about an axis passing through its centre and perpendicular to its plane. It is melted and recasted into a solid sphere. The moment of inertia of the sphere about its diameter as axis of rotation is |
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a) |
b) |
c) |
d) |

1 Answer

127 votes

Moment of inertia of a disc Disc is melted and recasted into a solid sphere. Volume of sphere=Volume of disc Moment of inertia of sphere |

127 votes

127