The moment of inertia of a disc an axis passing through its centre and perpendicular to its plane is I kg `m^(2)` . Its moment of inertia about an axis coincident with the tangent to it is

Options

A. I
B. `(5)/(4)I`
C. `(5)/(2)I`
D. `3I`

Answer

D

Explanation

`(I_(T))/(I_(C ))=((3)/(2)MR^(2))/((mR^(2))/(2))=3`
`I_(T)=3 I`.