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One circular ring and one circular disc,...

One circular ring and one circular disc, both are having the same mass and radius. The ratio of their moments of inertia about the axes passing through their centres and perpendicular to their planes, will be

A

`1:1`

B

`2:1`

C

`1:2`

D

`4:1`

Text Solution

Verified by Experts

The correct Answer is:
B
`(I_("ring")/(I_("disc"))) = (mR^(2))/(1/2 mR^(2)) = 2:1`
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