Question

What is a radio wave?

Answer 1

Radio wave:

1. Radio waves are electromagnetic waves with the longest wavelengths.
2. They are used to transmit data from radios, satellites, and radar.
3. These waves are a type of electromagnetic radiation with frequencies ranging from high 300 GHz to low as 3 kHz, though it is commonly defined as microwaves above 3 GHz.
4. The wavelength is 1 mm at 300 GHz and 100 km at 3 kHz.