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23 wrz 2024 · ultraviolet radiation, that portion of the electromagnetic spectrum extending from the violet, or short-wavelength, end of the visible light range to the X-ray region. Ultraviolet (UV) radiation is undetectable by the human eye, although, when it falls on certain materials, it may cause them to fluoresce—i.e., emit electromagnetic radiation ...
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- Ultraviolet Radiation
Ultraviolet (UV) light is electromagnetic radiation of wavelengths of 10–400 nanometers, 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.
1 kwi 2023 · Ultraviolet light or UV is electromagnetic radiation in the wavelength range of 10 to 400 nanometers (nm), which is between x-rays and visible light. Because it is largely invisible to humans, another name for UV is black light.
Ultraviolet radiation or ultraviolet light (UV) is part of the spectrum of elec- tromagnetic waves, covering theinterval between X-rays and visible light. Al- though real boundaries between these different kinds of radiation do not exist in physical terms, they are dictated by practical considerations.
Ultraviolet (UV) light is part of a family of radiations called the electromagnetic (EM) spectrum. UV is just beyond the violet end of visible light and has smaller wavelengths and greater energy. As with all electromagnetic spectrum radiations, UV travels at the speed of light.
Ultraviolet radiation (UV) is a type of radiant energy, much like the light we see, but with a smaller wavelength and higher energy. It is defined as the light in the spectrum of wavelengths between 40-400 nanometers. [1]
Ultraviolet radiation lies between visible light and X-rays along the electromagnetic spectrum. UV "light" spans a range of wavelengths between about 10 and 400 nanometers. The wavelength of violet light is around 400 nanometers (or 4,000 Å). Ultraviolet radiation oscillates at rates between about 800 terahertz (THz or 10 12 hertz) and 30,000 THz.
