Fluorescence - Deepstash

Fluorescence

Substances like minerals, plants, fungi, microbes, and organic and inorganic chemicals, can absorb UV radiation, causing electrons to jump to a higher energy level. When the electrons return to a lower energy level, they emit a portion of the absorbed energy as visible light.

  • Fluorescence is used for signs, safety vests, and other applications in which high visibility is important.
  • In fluorescent tubes, an electric current is passed through mercury vapour, producing ultraviolet radiation along with a blue light.

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