Question

How are radio waves used on Earth?

Answer 1

Step-by-step explanation:

Radio wave is an electromagnetic wave. It travels with the speed of the light. It is the longest wavelength in the electromagnetic spectrum.

Radio wave is used in cellphone and radio communication.

Radio wave is generated by transmitters. It is received by using an antenna.

Radio wave is used in RADAR. RADAR is a detection system. It is used to determine the velocity of the object.

Answer 2

Radio waves are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared light. Radio waves have frequencies as high as 300 GHz to as low as 3 kHz, though some definitions describe waves above 300 MHz or 3 GHz as microwaves, or include waves of any lower frequency. Have a good night!!