In the electromagnetic spectrum, which type of wavelength has the longest wavelength. It's main uses are in communication.
Hertzian waves Hertz waves Radio signal Radio emission Radio waves Hertzian wave Space wave RADIO WAVES Radio wave Radiofrequency electromagnetic fields
space wave radio waves radio signal radio wave radiofrequency electromagnetic fields hertz waves hertzian waves hertzian wave radio emission
radio waves
WikipediaEntity
RADIO WAVES