A) period of revolution is greater than the period of rotation of the earth about its axis
B) period of revolution is less than the period of rotation of the earth about its axis
C) period of revolution is equal to the period of rotation of the earth about its axis
D) mass is less than the mass of earth
Correct Answer: C
Solution :
The period of revolution of a synchronous relay satellite is equal to the period of rotation of earth about its axis. This makes it possible to reflects TV signals and transmits TV programmer from one part of the world to the other.
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