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What is a photon exactly?

What exactly is a Photon?

  • I know that between 1923-1925 Arthur Compton succeeded in bouncing the quanta of light off electrons. And light quanta in 1926 were called photons. But what exactly are they ? And how it links in with Gamma rays ?

  • Answer:

    Photons are quantized electromagnetic radiation, i.e, bundles of electromagnetic energy exhibiting bot wave and particle behavior. It is not just visible light that is quantized, but all electromagnetic radiation. It's just that gamma photons are much more energetic than visible light photons. http://physics.about.com/od/lightoptics/f/photon.htm http://en.wikipedia.org/wiki/Photon

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A photon is a particle that is created when electrons resist each other and other objects.

Charles

Photons are discrete quanta of energy. Gamma rays can act as photons - they do in pair production/annihilation.

SS4

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