A ring and a thin hollow cylinder have the same mass and radius. If `I_(r )` and `I_(s)` represent their moment of inertia about their axes, then

Options

A. `I_(r )=2I_(s)`
B. `I_(s)=2I_(r )`
C. `I_(s)=I_(r )`
D. none of these

Answer

C

Explanation

As mass and radius of ring = mass and radius of hollow cylinder.