Which one have the longest wavelength, X-Ray, visible light, or microwaves?

1 Answer
Jan 25, 2018

microwaves

Explanation:

The descending order of wavelength for the three is

microwaves>visible light>X ray

www.hubblesite.org

See the different electromagnetic waves have been shown here,on going along left to right both energy and frequency of the waves increases but wavelength decreases.