Question
Physics Question on communication systems
The requirement of transmitting microwaves from one position to another on the earth is that
A
the transmitting and receiving antennas must be in line of sight
B
the satellite remains fixed at a point w.r.t the earth
C
wavelength of e.m waves must be 10-6 m
D
frequency of e.m waves must be 10-6 Hz
Answer
the transmitting and receiving antennas must be in line of sight
Explanation
Solution
L.O.S. principle is important for MW communication because microwaves prefer to travel in a straight line