Figure shows two shells of masses `m_(1)` and `m_(2)`. The shells are concentric. At which point, a particle of mass `m` shall experience zero force?

Two concentric shells of mass m_(1) and m_(2) are situated as shown. Find the force on a particle of mass m when the particles is located at (a) r=r_(1),(b)r=r_(2),(c)r=r_(3) . The distance r is measured from the centre of the shell.

The figure shows a spherical shell of mass M . The point a is not at the centre but away from the centre of the shell. If a particle of mass m is placed at A , then

The figure shows a spherical shell of mass M . The point A is not at the centre but away from the centre of the shell. If a particle of mass m is placed at A , then

Figure shows a hemispherical shell of mass M and radius R and a concentric shell of mass m and radius 3R/4.

Two concentric shells of masses M_(1) and M_(2) are concentric as shown. Calculate the gravitational force on m due to M_(1) at points P,Q and R .

Two concentric shells of masses M_(1) and M_(2) are concentric as shown. Calculate the gravitational force on m due to M_(1) at points P,Q and R .

Two concentric shells of uniform density of mass M_(1) and M_(2) are situated. The forces experienced by a particle of mass m when palced at positions A,B and C respectively are given OA =p,OB = q and OC =r . .

Two concentric shells of uniform density of mass M_(1) and M_(2) are situated. The forces experienced by a particle of mass m when palced at positions A,B and C respectively are given OA =p,OB = q and OC =r . .