Two concentric spherical shells have masses M_(1), M_(2) and radii R_(1), R_(2)(R_(1) lt R_(2)). The force exerted by this system on a particle of mass m. If it is placed at a distance ((R_(1)+R_(2))/(2)) from the centre.

Two concentric spherical shells have masses M_(1), M_(2) and radii R_(

1.	Two concentric spherical shells have masses M_(1), M_(2) and radii R_(1), R_(2)(R_(1) lt R_(2)). The force exerted by this system on a particle of mass m. If it is placed at a distance ((R_(1)+R_(2))/(2)) from the centre.
Answer» SOLUTION :The GRAVITATIONAL force on .m. due to the shell of `M_(2)` is zero. The gravitational force on .m. due to the shell of `M_(1)` is given by `=(GM_(1)m)/((R_(1)+R_(2))/(2))^(2) = (4GM_(1)m)/((R_(1)+R_(2))^(2))`