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Two discs having same surface mass densi...

Two discs having same surface mass density having radii r and R.
`I_1` ------`rarr` moment of intertia of first disc about an axis perpendicular to the plane and passing through centre
`I_2` --------`rarr` Moment of inertias of second disc about one of its diameter. Find `I_1/ I_2`

A

`r^4/ R^4`

B

`2r^4/ R^4`

C

`r^4/2 R^4`

D

`2r^2/ R^4`

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