A circular hole of radius `r//2` is cut from a circular disc of radius `'r'`. The disc lies in the `
Channel: Doubtnut
Date: 30/08/2020

A circular hole of radius `r//2` is cut from a circular disc of radius `'r'`. The disc lies in the `xy` plane. Determine the moment of inertia about an axis passing through the centre and perpendicular to the plane of the disc.