The M.I. of two spheres of equal masses about their diameters are equal. If one of them is solid and other is hollow, the ratio of their radius isA. `sqrt(3):sqrt(5)`B. `3:5`C. `sqrt(5):sqrt(3)`D. `5:3`

The M.I. of two spheres of equal masses about their diameters are equa

1.	The M.I. of two spheres of equal masses about their diameters are equal. If one of them is solid and other is hollow, the ratio of their radius isA. `sqrt(3):sqrt(5)`B. `3:5`C. `sqrt(5):sqrt(3)`D. `5:3`
Answer» Correct Answer - C `I_(s)=(2)/(5)MR_(s)^(2)` and `I_(h)=(2)/(3)MR_(h)^(2)` As `I_(s)=I_(h) therefore (2)/(5)MR_(s)^(2) = (2)/(3)MR_(h)^(2)` `therefore (R_(s))/(R_(h))=(sqrt(5))/(sqrt(3))`

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The M.I. of two spheres of equal masses about their diameters are equal. If one of them is solid and other is hollow, the ratio of their radius isA. `sqrt(3):sqrt(5)`B. `3:5`C. `sqrt(5):sqrt(3)`D. `5:3`

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