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Ultraviolet radiation | Definition, Examples, Effects, Wavelengths ...
2024年11月11日 · 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. In physics, ultraviolet radiation is traditionally divided into four regions: near (400–300 nm), middle (300 ...
Ultraviolet Light or UV Radiation - Science Notes and Projects
2023年4月1日 · Ultraviolet light is the portion of the electromagnetic spectrum between x-rays and visible light (10-400 nm). 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.
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