Four spheres of diameter and mass are placed with their centres on the four corners of a square of side . Then the moment of inertia of the system about an axis along one of the sides of the square is |
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a) |
b) |
c) |
d) |

Four spheres of diameter and mass are placed with their centres on the four corners of a square of side . Then the moment of inertia of the system about an axis along one of the sides of the square is |
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a) |
b) |
c) |
d) |

1 Answer

127 votes

**(b)**

We calculate moment of inertia of the system about

Moment of inertia of each of the sphere and about

Moment of inertia of each of the sphere and about

Using theorem of parallel axes

Total moment of inertia

127 votes

127