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Radius of gyration of a body about an axis is 12 cm. Radius of gyration of the same body about a parallel axis passing through its centre of gravity is 13 cm. T?hen perpendicular distance between the two axes isA. 5 cmB. 1 cmC. 15 cmD. 10 cm |
Answer» Correct Answer - A `K_(0)^(2)=K_(c )^(2)+h^(2)` `therefore h^(2)= K_(0)^(2)-K_(c )^(2)` `= 13^(2)-12^(2)=169-144` `h^(2)=25` `h=5 cm`. |
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