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1. en.wikipedia.org › wiki › UltravioletUltraviolet - Wikipedia

   en.wikipedia.org › wiki › Ultraviolet

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   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.

2. www.livescience.com › 50326-what-is-ultraviolet-lightWhat Is Ultraviolet Light? - Live Science

   www.livescience.com › 50326-what-is-ultraviolet-light

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   15 wrz 2017 · Ultraviolet light is a type of electromagnetic radiation that makes black-light posters glow, and is responsible for summer tans — and sunburns. However, too much exposure to UV...

3. www.britannica.com › science › ultraviolet-radiationUltraviolet radiation | Definition, Examples, Effects,...

   www.britannica.com › science › ultraviolet-radiation

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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. Its wavelengths are between 400 and 10 nanometers. Learn more about ultraviolet radiation.

4. science.nasa.gov › ems › 10_ultravioletwavesUltraviolet Waves - Science@NASA

   science.nasa.gov › ems › 10_ultravioletwaves

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   10 sie 2016 · Learn about ultraviolet (UV) light, its sources, effects, and applications from NASA. Find out how UV light is invisible to humans, but visible to some insects, and how it can be used to study stars, galaxies, and aurorae.

5. www.who.int › news-room › questions-and-answersRadiation: Ultraviolet (UV) radiation - World Health Organization...

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   UV radiation is part of the sun's spectrum and can also come from artificial sources. It is divided into UVA, UVB and UVC, with different biological and environmental effects. Learn more about UV radiation and how to protect yourself from it.

6. sciencenotes.org › ultraviolet-light-or-uv-radiationUltraviolet Light or UV Radiation - Science Notes and Projects

   sciencenotes.org › ultraviolet-light-or-uv-radiation

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   1 kwi 2023 · Learn about the definition, types, sources, effects, and uses of ultraviolet light, the portion of the electromagnetic spectrum between x-rays and visible light. Find out how UV light affects the human body, animals, and the environment, and how to protect yourself from harmful exposure.

7. www.who.int › health-topics › ultraviolet-radiationUltraviolet radiation - World Health Organization (WHO)

   www.who.int › health-topics › ultraviolet-radiation

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   29 lip 2024 · Ultraviolet (UV) radiation covers the wavelength range of 100–400 nm, which is a higher frequency and lower wavelength than visible light. UV radiation comes naturally from the sun, but it can also be created by artificial sources used in industry, commerce and recreation.