In the relation F = GMm/d^{2}, the quantity G(a) depends on the value of g at the place of observation(b) is used only when the earth is one of the two masses(c) is greatest at the surface of the earth(d) is universal constant of nature
(d) The quantity G is universal constant of nature. It is applied to all the body present in universe It is constant of proportionality in Newton’s universal law of gravitation.The accepted value of G is 6.67x 1CT^{-11} Nm^{2} kg^{-2}.