which electromagnetic wave has wavelengths just longer than visible light?
Infrared light, microwaves and radio waves have wavelengths longer than visible light. Radio waves have the longest wavelength.
Infra-red waves have a wavelength which is shorter than microwaves, but still longer than visible light. Infra-red waves are basically heat energy emitted by hot objects which â¦ travel in the form of electromagnetic waves. 1 person found this useful. Answered.