Two metal spheres of same material and radius ‘r. are in contact with each other. The gravitational force of attraction between the spheres is given by (k in a constant).

Two metal spheres of same material and radius ‘r. are in contact wit

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