Ultraviolet Light

In physics ultraviolet radiation is traditionally divided into four regions.

Ultraviolet light. Ultraviolet radiation lies between wavelengths of about 400 nanometres 1 nanometre nm is 10 9 metre on the visible light side and about 10 nm on the x ray side though some authorities extend the short wavelength limit to 4 nm. Uv light comes primarily from the sun but there are also man made sources of uv light including tanning beds and the currently buzzed about uv disinfection lamps. Ultraviolet light is a type of electromagnetic radiation that makes black light posters glow and is responsible for summer tans and sunburns. Gearlight uv black light flashlight s100 2 pack mini blacklight ultraviolet pen lights for leak and hotel inspection pet urine bed bug scorpion stain and dye detector 4 6 out of 5 stars 1 235.

Ultraviolet uv is a form of electromagnetic radiation with wavelength from 10 nm with a corresponding frequency of approximately 30 phz to 400 nm 750 thz shorter than that of visible light but longer than x rays uv radiation is present in sunlight and constitutes about 10 of the total electromagnetic radiation output from the sun it is also produced by electric arcs and specialized. Ultraviolet uv light is a type of electromagnetic radiation that is all around us even though our eyes can t detect it.