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A rod is rotating about an axis passing through its centre and perpendicular to its length.The radius of gyration for the rod is
A rod is rotating about an axis passing through its centre and perpendicular  to its length . The radius of gyration for the rod is
Options:
(a) L/12 (b) `L'/'sqrt(12)` (c) L/6 (d) `L'/'sqrt6`

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