Class 11 NEET Physics System of Particles and Rotational Motion

Moment of inertia of a uniform circular disc about an axis through its centre and perpendicular to its plane is IC=

1

2

MR2
∴ Moment of inertia of a uniform circular disc about an axis touching the disc at its diameter and normal to the disc is I.
By the theorem of parallel axes,
I=IC+Mh2 =

1

2

MR2+MR2 =

3

2

MR2