Ultraviolet radiation or UV 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 …

Nov 21, 2025 · Ultraviolet radiation is the portion of the electromagnetic spectrum extending from the violet, or short-wavelength, end of the visible light range to the X-ray region.

Although we see sunlight (or white light) as uniform or homogeneous in color, it is actually composed of a broad range of radiation wavelengths in the ultraviolet (UV), visible and infrared (IR) portions of the …

Aug 10, 2016 · The Sun is a source of the full spectrum of ultraviolet radiation, which is commonly subdivided into UV-A, UV-B, and UV-C. These are the classifications most often used in Earth sciences.

UV (Ultraviolet) Light refers to the region of the electromagnetic spectrum between visible light and X-rays, with a wavelength falling between 400 and 10 nanometers.

Apr 1, 2023 · 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 …

Jun 19, 2025 · What is ultraviolet light, and where does it come from? Learn how UV radiation is classified, measured, and used in medicine, manufacturing, astronomy, and daily life, plus how to …