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.

Category: Physics

Related terms: Light, Wavelength, Frequency

Abbreviation or symbol: Gamma (γ) (Not to be confused with gamma radiation)

Synonym:

References:

https://doi.org/10.1006/rwsp.2000.0055

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