Question

Which of the following is related to telecommunication?

• A. X-rays
• B. r-rays
• C. Sound wave
• D. Microwaves

Answer 1

The correct option is D

Microwaves

Explanation for the correct answer:

In the case of option D.

1. Microwave radio transmission is generally used in point-to-point communication systems on Earth, in satellite communications, and in space radio communications.
2. Other parts of microwave radio waves are used for radars, radio navigation systems, and sensor systems.
3. Thus, option D is the correct option.

Explanation for the incorrect answers:

In the case of option A.

1. X-rays are to be used to examine most areas of the body.
2. They're generally used to look at the bones and joints,
3. They are not used in telecommunication at all.
4. Thus, option A is the incorrect option.

In the case of option B.

1. R rays or ragnite rays are very powerful ionizing radiation emitted whenever required a large amount of ragnite to be released suddenly.
2. It is a very powerful ray that is very much able to contaminate the immediate area where it is used.
3. They are not used in telecommunication at all.
4. Thus, option B is the incorrect option.

In the case of option C.

1. A sound wave is the pattern of some disturbance caused by the movement of energy traveling through a medium as it propagates away from the source of the sound.
2. They are not used in telecommunication at all.
3. Thus, option C is the incorrect option.

Thus, option D is the correct option.