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Date: 05 September 2008
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ultraviolet radiation  

Details of ultraviolet radiation



Radiation beyond the violet (high energy) end of the visible light spectrum. UV-B is the middle range wave-length of the three UV bands, and is largely absorbed in the Earth's atmospheric ozone layer; prolonged exposure to UV-B can be biologically damaging.

Another definitions 

ultraviolet radiation - a kind of the electromagnetic radiation that is more energetic than visible light. Ultraviolet radiation is invisible to humans.

Radiation in the wavelength range between visible light and X-rays, divided into wavelength bands A, B, C. Much of the ultraviolet radiations in bands B and C are prevented from reaching the earth's surface by the ozone layer present in the atmosphere.

Ultraviolet radiation Electromagnetic radiation of shorter wavelength than visible radiation but longer than x-rays; roughly, radiation in the wavelength interval from 10 to 4000 angstroms.

See also

  • Electromagnetic radiation
  • Ultraviolet
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