A geostationary satellite orbits around the earth in a circular orbit of radius
A geostationary satellite orbits around the earth in a circular orbit of radius 36000 km. Then, the time period of a satellite orbiting a few hundred kilometres above the earth’s surface (REarth = 6400 km ) will approximately be
(a) 1/2 h (b) 1 h
(c) 2 h (d) 4 h
Answer: c
(17)
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(a) – 5 J (b) – 10 J (c) – 15 J (d) – 20 J Answer-a (123)