Physics - Rotation Question with Solution | TestHub

The moment of inertia is given by $$\mathrm{I}=\sum {\mathrm{m}}_{\mathrm{i}}{\mathrm{r}}_{\mathrm{i}}^2$$ If the distance of particles from the axis of rotation is larger, then the moment of inertia will be larger. For axis $\mathrm{QR}$, the particles will be situated at greater distances and hence the moment of inertia will be greater.