Question

The momentum of inertia of a uniform semicircular disc of mass M and radius R about a line perpendicular to the plane of disc and passing through the centre is

• A. $\frac { \mathrm { MR } ^ { 2 } } { 4 }$
• B.
• C. MR²
• D. $\frac { \mathrm { MR } ^ { 2 } } { 2 }$

Answer 1

Answer: (D)

$\frac { \mathrm { MR } ^ { 2 } } { 2 }$

Answer 2

2I = 2M.