Two concentric spherical shells have masses M_1 nd M_2and 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 nd M_2and radii R_1,R_

1.	Two concentric spherical shells have masses M_1 nd M_2and 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 `(GM_1m)/(((R_1+R_2)/2))=(4GM_1m)/((R_1+R_2)^2)`