Moment of inertia of a uniform circular disc about a diameter is `I`. Its moment of inertia about an axis perpendicular to its plane and passing through a point on its rim will be.

Options

A. 5 I
B. 6 I
C. 3 I
D. 4 I

Answer

B

Explanation

Given,
`I=(MR^(2))/(4)impliesMR^(2)=4I`
Required MOI = `(MR^(2))/(2)+MR^(2)=(3)/(2)MR^(2)`
implies `(3)/(2)(4I)=6I`