A satellite is to be placed in equatorial geostationary orbit around earth for communication.
Channel: Doubtnut
Date: 2020-08-02

A satellite is to be placed in equatorial geostationary orbit around earth for communication.   (a) Calculate height of such a satellite.   (b) Find out the minimum number of satellites that are needed to cover entire earth so that at least one satellites is visible from any point on the equator.   `[M = 6 xx 10^(24) kg, R = 6400 km, T = 24 h, G = 6.67 xx 10^(-11) SI units]`