Two metal spheres of same material and radius 'r' are is contact with each other. The gravitational force of attraction between the spheres is given by

Two metal spheres of same material and radius 'r' are is contact with

1.	Two metal spheres of same material and radius 'r' are is contact with each other. The gravitational force of attraction between the spheres is given by
Answer» `F = K r^(4)` `F = k//r^(2)` `F = k//4r^(2)` `F = k r^(2)` ANSWER :A