A solid sphere of radius `a` and mass `m` is surrounded by cocentric spherical shell of thickness `2a` and mass `2m` the gravitational field at a distance 3a from their centres is
A solid sphere of mass M and radius R is surrounded by a concentric shell of equal mass M and radius 3R . The gravitational field at a point P_(1) at a distance r_(1)=2R from the centre is I_(1) and a point P_(2) at distance r_(2)=4R from the centre is I_(2) The ratio (I_(2))/(I_(1))
A uniform solid sphere of mass M and radius a is surrounded symmetrically by a uniform thin spherica shel of equla mass and radius 2a.Find the gravitational field at a distance a. 3/2 a from the centre , b. 5/2 as from the centre.
A uniform sphere of mass M and radius R is surrounded by a concentric spherical shell of same mass but radius 2R. A point mass is kept at a distance x ( gt R) in the region bounded by spheres as shown in the figure . The net gravitational force on the particle is
A uniform metal sphere of radius R and mass m is surrounded by a thin uniform spherical shell of same mass and radius 4R . The centre of the shell C falls on the surface of the inner sphere. Find the gravitational fields at points A and B .
A particle of mass M is placed at the centre of a uniform spherical shell of equal mass and radius a. Find the gravitational potential at a point P at a distance a/2 from the centre.
A uniform solid sphere of mass m and radius r is suspended symmetrically by a uniform thin spherical shell of radius 2r and mass m .
A uniform metal sphere of radius a and mass M is surrounded by a thin uniform spherical shell of equal mass and redius 4a. The centre of the shell falls on the surface of the iner sphere
A particle of mass M is situated at the centre of a spherical shell of same mass and radius 'a'. The gravitational potential at a point situated at (a)/(2) distance from the centre, will be
A body of mass m is placed at the centre of the spherical shell of radius R and mass M. The gravitation potential on the surface of the shell is
