Difference between revisions of "Ultraviolet"
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| − | + | '''Ultraviolet''' (or '''UV''') is [[electromagnetic radiation]] in the wavelength range of 4 to 400 nanometers, shorter wavelengths than that of visible light. The [[sun]] produces UV, which is commonly split into three bands: [[UVA]],[[UVB]], and [[UVC]]. | |
UVA is not absorbed by [[ozone]]. UVB is mostly absorbed by ozone, although some reaches the Earth. UVC is completely absorbed by ozone and normal [[oxygen]]. | UVA is not absorbed by [[ozone]]. UVB is mostly absorbed by ozone, although some reaches the Earth. UVC is completely absorbed by ozone and normal [[oxygen]]. | ||
[[category:physics]] | [[category:physics]] | ||
Revision as of 13:44, December 25, 2009
Ultraviolet (or UV) is electromagnetic radiation in the wavelength range of 4 to 400 nanometers, shorter wavelengths than that of visible light. The sun produces UV, which is commonly split into three bands: UVA,UVB, and UVC.
UVA is not absorbed by ozone. UVB is mostly absorbed by ozone, although some reaches the Earth. UVC is completely absorbed by ozone and normal oxygen.