# A geostationary satellite orbits around the earth in a circular orbit of radius 36000 km. Then……

Q: A geostationary satellite orbits around the earth in a circular orbit of radius 36000 km. Then, the time period of a spy satellite orbiting a few 100 km above the earth’s surface (Rearth = 6400km) will approximately be

(a) 1/2 h

(b) 1 h

(c) 2 h

(d) 4 h

Ans: (c)