The masses of two uniform discs are in the ratio `1 : 2` and their diameters in the ratio `2 : 1`. The ratio of their moment, of inertia about the axis passing through their respective centres and perpendicular to their planes is

If the masses of two uniform discs are in the ratio 1: 2 and their diameters are in the ratio 2 : 1, then the ratio of their moments of inertia about the axes passing through their respective centres and perpendicular to their planes will be

The masses of two uniform discs are in the ratio 2 : 1 and their radii are in the ratio 1 : 2 . The ratio of their moments of inertia about the axis passing through their respective centres normal to plane is

The masses of two uniform discs are in the ratio 2 : 1 and their radii are in the ratio 1 : 2 . The ratio of their moments of inertia about the axis passing through their respective centres normal to plane is

Two discs have same mass and thickness. Their materials are of densities d_(1) and d_(2) . The ratio of their moments of inertia about an axis passing through the centre and perpendicular to the plane is

Two rings have their moments of inertia in ratio 2 : 1 and their diameters are in the ratio 2 : 1. The ratio of their masses is