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Ultraviolet light (UV light)

February 3, 2021

Electromagnetic waves located at the lower end of the visible light spectrum. They move within the wavelength range of 200‒400 nm. UV light is often used to analyse security documents and notes and security features such as paper brightness, fluorescent inks, fluorescent fibres, etc. UV-lamps used in stores and banks to verify banknotes operate at a wavelength of 365 nm.