Question

Which of the following describes the Geostationary Orbit (GEO) correctly ?
(1) Altitude of 20,000 km above the sea level and the orbital period is 12 hours.
(2) Altitude of 36,000 km above the sea level and the orbital period is 24 hours.
(3) Altitude of 400 km above the sea level and the orbital period is 90 minutes.
(4) None of the above

Answer 1

36,000 km.
precisely it is 35,786 km above sea level whose period is almost exactly equal to 1 day

Answer 2

(GEO) :Altitude of 36,000 km above the sea level and the orbital period is 24 hours