Question

The waves used by artificial satellites for communication is the:
A) $Microwaves$
B) $Infrared waves$
C) $Radio waves$
D) $X-rays$

Answer 1

Hint: Microwaves are a form of electromagnetic radiation. The wavelength of microwaves ranging from one meter to one millimeter. Microwaves are easier to focus than radio waves. Because of the microwave short wavelength, it is used in broadcasting and telecommunication. The wavelength of microwaves ranging from one meter to one millimeter. It travels in a straight line and is reflected by the conducting surfaces.

Complete answer:
Microwave technology is highly used for point to point communication. The microwaves are preferred to communicate with the artificial satellites which are orbiting the earth at a particular height from the surface of the earth. The microwaves are able to penetrate through Earth’s atmosphere very easily and can reach the target satellite. Hence microwaves are preferred by artificial satellites for communication. Most microwaves are used to communicate with the geostationary satellite rather than the satellite which is orbiting in low orbit.
Microwaves are used for satellite communication because microwaves can pass straight through the atmosphere and connect antennas on earth to a satellite in earth’s orbit. Satellite communication plays an important role in telecommunication in the global state.
There are two components of satellite communication: the ground segment and the space segment. The space segment consists of fixed or movable transmission, reception ancillary equipment. The space segment contains the satellite itself. Generally, Radio waves are used for communication such as television and radio and also used to communicate with the satellite that is orbiting in low orbit.

Hence, the answer is Option (A), Microwaves.

Note: Nearly $2000$ artificial satellites orbiting the earth relay analog and digital signals carrying voice, data, and videos to and from many locations worldwide. With microwaves, higher data rates are transmitted as the bandwidth is more and satellite communications with high capacities are possible.