Ultraviolet - Wikipedia
WEBUltraviolet ( 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 …
Ultraviolet radiation | Definition, Examples, Effects, Wavelengths ...
WEBMay 31, 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 ...
Ultraviolet Waves - NASA Science
WEBAug 10, 2016 · What is UV Light? Ultraviolet (UV) light has shorter wavelengths than visible light. Although UV waves are invisible to the human eye, some insects, such as bumblebees, can see them.
What Is Ultraviolet Light? | Live Science
WEBSep 15, 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 radiation is...
Ultraviolet Light or UV Radiation - Science Notes and Projects
WEBApr 1, 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.
What is UV radiation and how does it affect health? - Medical …
WEBAug 24, 2023 · Ultraviolet (UV) radiation is one part of the electromagnetic spectrum of radiation that reaches Earth from the sun. It is a form of light energy situated on the spectrum just beyond visible...
Ultraviolet (UV) Radiation | Center for Science Education
WEBUltraviolet (UV) Radiation. Blacklights such as this emit invisible ultraviolet (UV) "light" as well as the purple light that you can see. Ultraviolet (UV) "light" is a type of electromagnetic radiation. UV light has a shorter wavelength than visible light.
Radiation: Ultraviolet (UV) radiation - World Health Organization …
WEBMar 9, 2016 · Solar emissions include visible light, heat and ultraviolet (UV) radiation. Just as visible light consists of different colours that become apparent in a rainbow, the UV radiation spectrum is divided into three regions called UVA, UVB and UVC.
Ultraviolet radiation - World Health Organization (WHO)
WEBJan 23, 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.
Electromagnetic radiation - UV, Wavelengths, Absorption
WEBWhen ultraviolet light strikes certain materials, it causes them to fluoresce —i.e., they emit electromagnetic radiation of lower energy, such as visible light.
Skip to content
