A geostationary satellite orbits around the earth in a circular orbit which is at a height of 36000 kg from the surface of earth. Then the period of spy satellite orbiting a few hundred km above the earth's surface (R_("earth")= 6400 km) will approximately be

A geostationary satellite orbits around the earth in a circular orbit

1.	A geostationary satellite orbits around the earth in a circular orbit which is at a height of 36000 kg from the surface of earth. Then the period of spy satellite orbiting a few hundred km above the earth's surface (R_("earth")= 6400 km) will approximately be
Answer» `(1)/(2)HR` `1(1)/(2)hr` `2HR` `4hr` ANSWER :B