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Two circular discs A and B of equal mass...

Two circular discs `A` and `B` of equal masses and thicknesses. But are made of metals with densities `d_A and d_B (d_A gt d_B)`. If their moments of inertia about an axis passing through the centre and normal to the circular faces be `I_A and I_B`, then.

A

`I_A = I_B`

B

`I_A gt I_B`

C

`I_A lt I_B`

D

`I_A gt = lt I_B`

Text Solution

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The correct Answer is:
C
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  • Two circular discs and are of equal masses and thickness but made of metals with densities d_(A)=d_(B)(d_(A)gtd_(B)) If their moments of inertia about an axis passing through centres and normal to the circular faces be I_(A)andI_(B) , then

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