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What is the ratio of the moments of iner...

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?

A

`1:n^(2)`

B

`1:n`

C

`1:2n`

D

`n^(2):1`

Text Solution

Verified by Experts

The correct Answer is:
A
`I_(1)/I_(2) = (Mr^(2))/(m(nr)^(2)) = 1:n^(2)`
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