1.

What is the ratio of the moments of inertia of two rings radii r and nr about an axis perpendicular to their plane and passing through their centres?

Answer»

`1:n^(2)`
`1:n`
`1:2n`
`n^(2):1`

Solution :`I_(1)/I_(2) = (MR^(2))/(m(NR)^(2)) = 1:n^(2)`


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