Ultraviolet X Ray Definition

Ultraviolet uv light is a type of electromagnetic radiation that is all around us even though our eyes can t detect it.

Ultraviolet x ray definition. Some chemicals such a cfcs chlorofluorocarbons and bromofluorocarbons can deplete the ozone layer i e shrink it. The wavelengths of ultraviolet rays vary. They may be refracted reflected and polarized but will not traverse many substances impervious to the rays of the visible spectrum. They rapidly destroy the vitality of bacteria and are able to produce photochemical and.

Near 400 300 nm middle 300 200 nm far 200 100 nm and extreme below. Ultraviolet radiation definition. 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. Ultraviolet uv is a form of electromagnetic radiation with wavelength from 10 with a corresponding frequency around 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 lights such.

It is also known as uv radiation ultraviolet light or simply uv. Definition of ultraviolet uv rays. An invisible ray of the spectrum beyond the violet rays. The ozone layer or ozone shield is a region high up in the earth s atmosphere.

The ultraviolet uv rays have wavelengths ranging from about 10 nm to. Ultraviolet rays a ray characterized generally by a wavelength between 10 nm to about 400 nm supplement the electromagnetic spectrum pertains to the entire range of wavelengths of electromagnetic radiation it includes gamma rays x rays uv visible light infrared microwaves and radio waves. The ozone layer contains high concentrations of ozone or o 3. The ozone layer absorbs most of the ultraviolet radiation that comes from the sun.

Ultraviolet a uva ultraviolet radiation with wavelengths between 320 and 400 nm comprising over 99 per cent of such radiation that reaches the surface of the. Ultraviolet radiation has a wavelength longer than that of x rays but shorter than that of visible light. Invisible solar radiation that lies just beyond the violet end of the visible spectrum in the wavelength range from 10 to 400 nanometers just below the x ray range and can harm living tissue. In other words it protects us.

Our bodies use it to make vitamin d but. In physics ultraviolet radiation is traditionally divided into four regions.