A uniform disc of mass 2kg is rotated about an axis perpendicular to the plane of the disc . If radius of gyration is 50cm, then the M.I. of disc about same axis isA. `0.25 kg m^(2)`B. `0.5kg m^(2)`C. `2kg m^(2)`D. `1kg m^(2)`

A uniform disc of mass 2kg is rotated about an axis perpendicular to t

1.	A uniform disc of mass 2kg is rotated about an axis perpendicular to the plane of the disc . If radius of gyration is 50cm, then the M.I. of disc about same axis isA. `0.25 kg m^(2)`B. `0.5kg m^(2)`C. `2kg m^(2)`D. `1kg m^(2)`
Answer» Correct Answer - B `I = MK_(c )^(2)=2xx(0.5)^(2)=2xx0.25=0.5`.

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A uniform disc of mass 2kg is rotated about an axis perpendicular to the plane of the disc . If radius of gyration is 50cm, then the M.I. of disc about same axis isA. `0.25 kg m^(2)`B. `0.5kg m^(2)`C. `2kg m^(2)`D. `1kg m^(2)`

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