Photon

Definition: An elementary particle that is a quantum (unit) of electromagnetic radiation, such as visible light, often characterized by its frequency or wavelength. They are massless, exhibit wave-particle duality, and travel at sim 3x10^8 m/s (c) in a vacuum.Definition: An elementary particle that is a quantum (unit) of electromagnetic radiation, such as visible light, often characterized by its frequency or wavelength. They are massless, exhibit wave-particle duality, and travel at sim 3x10^8 m/s (c) in a vacuum.

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Related terms: Light, Wavelength, Frequency  

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