Subject :NSO Class : Class 9

Kepler's third law states that square of period of
revolution (T) of a planet around the sun is proportional
to third power of average distance r between the sun
and the planet i.e. T^{2} = Kr^{3} (here K is constant). If the
masses of sun and planet are M and m respectively then
as per Newton's law of gravitation, force of attraction
between them is F = GMm/r^{2}, here G is gravitational
constant.

The relation between G and K is described as

A K = G

B K = 1/G

C GK = 4π^{2}

D GMK = 4π^{2}