Four point masses (each of mass m) are arranged it the X-Y plane the moment of inertia of this array of masses about Y-axis is

Three rings each of mass M and radius R are arranged according to the figure. The moment of inertia of this system about an axis XX' on its plane would be

Three rings each of mass M and radius R are arranged according to the figure. The moment of inertia of this system about an axis XX' on its plane would be

Three rings, each of mass P and radius Q are arranged as shown in the figure. The moment of inertia of the arrangement about YY' axis will be

Three rings, each of mass P and radius Q are arranged as shown in the figure. The moment of inertia of the arrangement about YY' axis will be

Four point masses, each of mass m, are arranged in the xy-plane at the points (0,0), (a,a),(a,- a) and (2a, 0) respectively . What is the moment of inertia of this array of masses about y-axis?

Four rings each of mass M and radius R are arranged as shown in the figure. The moment of inertia of the system about YY' will be

Four rings each of mass M and radius R are arranged as shown in the figure. The moment of inertia of the system about YY' will be

The moment of inertia of a ring of mass M and radius R about PQ axis will be

The moment of inertia of a ring of mass M and radius R about PQ axis will be :-

The moment of inertia of a ring of mass M and radius R about PQ axis will be