A thin disc of mass M and radius R has mass per unit area where
r is the distance from the center. Its moment of inertia abount an axis going through its centre of mass
and perpendicular to its plane is:
Moment of inertia for continuous body -
- wherein
r is perpedicular distance of a particle of mass dm of rigid body from axis of rotation
...............(1)
................(2)
from (1) and (2)
Option 1)
Option 2)
Option 3)
Option 4)
Study 40% syllabus and score up to 100% marks in JEE