The kind of waves that cellular telephones use to transmit and receive network signals is: C. microwaves.
A wave can be defined as a disturbance in a medium that progressively transports energy from its source to another location, without the transportation of matter.
In Physics, the are different kinds of wave in the electromagnetic spectrum and these include the following;
The wavelength of microwave is between the range of 1 millimeter (mm) to 1 meter (m) while its frequency is ranging from 300 megahertz (MHz) to 300 gigahertz (GHz).
Hence, microwaves are used in cellular telephones to transmit and receive network signals because of their small wavelength and high frequency.
Also, microwaves are used in cellular telephones because they are able to carry thousands of channels at once.
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