A solid sphere of mass M and radius R has a spherical cavity of radius R/2 such that the centre of cavity is at a distance R/2 from the centre of the sphere. A point mass `m` is placed inside the cavity at a distanace R/4 from the centre of sphere. The gravitational force on mass `m` is

The figure represents a solid uniform sphere of mass M and radius R . A spherical cavity of radius r is at a distance a from the centre of the sphere. The gravitational field inside the cavity is

The figure represents a solid uniform sphere of mass M and radius R . A spherical cavity of radius r is at a distance a from the centre of the sphere. The gravitational field inside the cavity is

A mass m is placed in the cavity inside hollow sphere of mass M as shown in the figure. The gravitational force on m is

A fixed sphere of radius R and uniform density rho has a spherical cavity of radius R//2 such that the surface of the cavity passes through the centre of the sphere. A particle of mass m is located at the centre (A) of the velocity. Calculated (a) The gravitational field at A . (b) The velocity with which the particle strikes the centre O of the sphere. (Neglect earth's gravity)

Inside a uniform sphere of mass M and radius R, a cavity of radius R//3 , is made in the sphere as shown :

A sphere of radius 2R and mas M has a spherical cavity of radius R as shown in the figure. Find the value of gravitational field at a point P at a distance of 6R from centre of the sphere.

A sphere of radius 2R and mas M has a spherical cavity of radius R as shown in the figure. Find the value of gravitational field at a point P at a distance of 6R from centre of the sphere.

A point mass m_(0) is placed at distance R//3 from the centre of spherical shell of mass m and radius R. the gravitational force on the point mass m_(0) is

A cavity of radius R//2 is made inside a solid sphere of radius R . The centre of the cavity is located at a distance R//2 from the centre of the sphere. The gravitational force on a particle of a mass 'm' at a distance R//2 from the centre of the sphere on the line joining both the centres of sphere and cavity is (opposite to the centre of cavity). [Here g=GM//R^(2) , where M is the mass of the solide sphere]