Four particles each of mass are placed at the corners of a square of side length . The radius of gyration of the system about an axis perpendicular to the square and passing through its centre is |
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a) |
b) |
c) |
d) |

Four particles each of mass are placed at the corners of a square of side length . The radius of gyration of the system about an axis perpendicular to the square and passing through its centre is |
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a) |
b) |
c) |
d) |

1 Answer

127 votes

**(a)**

Moment of inertia of system about point

and

127 votes

127