The earth ( mass = 6 × 10^24 kg) revolves round the sun with angular velocity 2×10^-7 rad/s in a circular orbit of radius 1.5 × 10^8 km, the force exerted by the sun on the earth in newtons, is

Q: The earth ( mass = 6 × 1024 kg) revolves round the sun with angular velocity 2×10-7 rad/s in a circular orbit of radius 1.5 × 108 km, the force exerted by the sun on the earth in newtons, is

(a) 18 × 1025

(b) Zero

(c) 27 × 1039

(d) 36 × 1021

Ans: (d)