Two metal spheres of same material and each of radius r are in contact with each other. The gravitational force of attraction between the sphere is proportional to

Two metal spheres of same material and each of radius r are in contact

1.	Two metal spheres of same material and each of radius r are in contact with each other. The gravitational force of attraction between the sphere is proportional to
Answer» SOLUTION :`F=(Gm_1m_2)/((2R)^2)=(G({:(4),(3):}pir^3d)({:(4),(3):}pir^3d))/(4r^2)` `F = Kr^4"" F propr^4`