12. Which of the following is/are the reason/s why microwaves are used in communication satellites? A. They are used for their lower frequency B. They are used for their high frequency, which allows them to carry huge amounts of information only. C. They are used for their smaller wavelength, which allows antennas to point them directly at a recieving antenna only. D. They are used for their smaller wavelength allowing antennas as well as for their higher frequency allowing them to carry huge amount of information.

Microwaves are employed because of their shorter wavelength, allowing antennas to be pointed directly at a receiving antenna. Microwaves are also used because of their high frequency, which allows them to transmit large volumes of data. Mobile phones uses radio waves to communicate with a mobile cell tower, and towers use microwaves to interact with satellites. Because microwaves may penetrate through the environment, they are employed. This signal may be transmitted to a satellite and utilized to communicate globally (more than one satellite is required for this). The transfer of information by electromagnetic waves with wavelengths in the microwave range (1 m - 1 mm) of the electromagnetic spectrum is known as microwave transmission. Microwave transmissions are typically confined to line-of-sight transmission, therefore long-distance transmission via these signals is not possible.

Why cant radio waves be used in satellite communication instead of microwaves?

brainly.ph/question/11821689

#LETSSTUDY