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The photon is the quantum of the electromagnetic four-potential, and therefore the massless bosonic particle associated with the electromagnetic force, commonly also called the "particle of light". Use this tag for questions about the quantum-mechanical understanding of light and/or electromagnetic interactions.

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Compton effect in photo-electric?

In photo-electric effect Einstein said that photons incidents on material and gives their energy which will gives kinetic energy to electrons. …
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2 votes

Can light have zero wavelength?

In case of photon's wave nature they have definite wavelengths for definite energies. If wavelength become zero then its energy become infinite which is impossible. Secondly, every wave must have wave …
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