The ratio of the radii of gyration of a circular disc about a tangential axis in the plane of the disc and of a circular ring of the same radius about a tangential axis in the plane of the ring is
A
2:1
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B
√5:√6
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C
2:3
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D
1:√2
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Solution
The correct option is A√5:√6 Idisk = 54MR2 = MK2disk