Question

Why is the moment of inertia of a sphere not equal to that of a disc

Answer 1

Its why because geometry of disc is different from the geometry of the sphere and moment of inertia depends upon the geometry of the body....

Answer 2

$heya....$

we know moment of inertia depends upon the geometry of the body and the moment of inertia of sphere is not equal to the moment of inertia of a disk.

$\huge{\bf{\blue{\fbox{\underline{\color{orange} {hOpE... it.... hElpS .. !! }}}}}}$