Correct Answer : Option (D) : orbits the earth within a 24 hour period
Explanation : It orbits the earth in a 24 hour period. Thus it appears to be stationed over one spot of the globe.
Correct Answer : left to right
Correct Answer : Fading
Explanation : Tropospheric scatter propagation is subject to two types of fading called Rayleigh fading (due to multipath propagation) and fading due to variations in atmospheric conditions along the propagation path.
Correct Answer : 13 mm