What is a photon?

14595750_798175196989027_2325083202367244304_n.jpghttps://en.oxforddictionaries.com/definition/photon

 

photon

NOUN

Physics 

  • A particle representing a quantum of light or other electromagnetic radiation. A photon carries energy proportional to the radiation frequency but has zero rest mass.

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Origin

Early 20th century: from Greek phōs, phōt- ‘light’, on the pattern of electron.

Pronunciation

photon

/ˈfəʊtɒn/