Radio Waves Frequency
FM radio waves are shorter than AM radio waves. For example, an FM radio station at 100 on the radio dial (100 megahertz) would have a wavelength of about three meters. An AM station at 750 on the dial (750 kilohertz) uses a wavelength of about 400 meters.
Radio waves facts and uses
Facts: Radio waves are really fast they travel the speed of light,