Question

Why are 5G mmWave signals more likely to be blocked by physical barriers such as walls, buildings, and trees?

A. Its signals are transmitted at lower frequencies.

B. It is designed to work only within a single building.

C. Its signals transmit less information than older signals.

D. Its signals are transmitted at higher frequencies.

Answer 1

Answer:

Its signals transmit less information than older signals.

Explanation:

Answer 2

5G mmWave signals more likely to be blocked by physical barriers such as walls, buildings, and trees because its signals are transmitted at higher frequencies (option D).

This can be explained in the following way:

• Lower frequency bands cover a longer distance but have a slower data rate.
• Because the higher frequency bands have more bandwidth, greater data speeds can be attained.
• However, they have a shorter wavelength and propagate over a shorter distance, making them more susceptible to physical barriers.
• Millimetre waves of the fifth generation have frequencies ranging from 24 to 100 GHz, which is a relatively short wavelength.
• Because of the high frequency and short wavelength, 5G mmWave will require a large number of small cell stations to carry signals efficiently.