Two discs of same mass and different radii are made of different materials such that their thicknesses are `1cm` and `0.5cm` respectively.The densities of materials are in the ratio `3:5`.The moment of inertia of these discs respectively about their diameters will be in the ratio of `(x)/(6)`.The value of `x` is

Two discs of same thickness but of different radii are made of two different materials such that their masses are same. The densities of the materials are in the ratio of 1 : 3. The moments of inertia of these discs about the respective axes passing through their centres and perpendicular to their planes will be in the ratio of

Two discs of the same material and thickness have radii 0.2 m and 0.6 m. Their moments of inertia about their axes will be in the ratio of

Two rings having same moment of inertia have their radii in the ratio 1 : 4. Their masses will be in the ratio

The moment of inertia of two spheres of equal masses about their diameters are the same. One is hollow, then ratio of their diameters

Two discs A and B have same mass and same thickness. If d_1 and d_2 are the densities of the materials of the discs A and B respectively, then the ratio of the moment of inertia of the discs A and B about their geometrical axis is

The ratio of moments of inertia of two solid spheres of same mass but densities in the ratio 1:8 is

Two solid spheres are made of the same material. The ratio of their diameters is 2: 1. The ratio of their moments of inertia about their respective diameters is

Two solid sphere ( A and B ) are made of metals of different densities rho_A and rho_B respectively. If their masses are equal, the ratio of their moments of inertia (I_A/I_B) about their respective diameter is