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

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

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