The term “ultraviolet” means “beyond violet.” In the visible part of the spectrum, wavelength decreases — and the energy of the
electromagnetic waves increases — from red through orange, yellow, green, blue and violet, so UV light has a shorter
wavelength, and more energy, than violet light.
Read more: http: //www.wisegeek.com/what-is-ultraviolet-light.htm
http://science.hq.nasa.gov/kids/imagers/ems/uv.html
electromagnetic waves increases — from red through orange, yellow, green, blue and violet, so UV light has a shorter
wavelength, and more energy, than violet light.
Read more: http: //www.wisegeek.com/what-is-ultraviolet-light.htm
http://science.hq.nasa.gov/kids/imagers/ems/uv.html