A humidifier is a device that monitors the humidity levels of an enclosed space and adds moisture into that space when the monitored humidity levels are beyond the settings.
Confidence votes 112. The rays of the electromagnetic spectrum from shortest to longest wavelength are: radio waves, microwaves, infrared rays, optical rays, ultraviolet rays, X-rays, and gamma-rays. EDIT: He has these backwards, the shortest wavelength is created by Gamma-Rays and the longest is Radiowaves. Remember- high energy = short wavelength.
Report Abuse. 1  This Site Might Help You. 2  Shortest Wavelength. 3  Longest Wavelength.  radio 1  waves. For the best answers, search on this site https://shorturl.im/DTh20.  oh shoot, we're learning about this in science at the sma etime you are and i can't rememer! Grrrr.... ;) well, i think it would be true because i think i remember reading that red was shortest and violet was longest but idk about the other colors. i would google visible light specturum just to be sure. sorry.