This week we are learning about atomic physics. At some point we
talked about photons. Do...
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Physics
This week we are learning about atomic physics. At some point wetalked about photons. Do some research about photons and share yourfindings with your group about photons, what they are, whyscientists introduced them, and what they do in our understandingsof the nature of light.
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The photon is a type of elementary particle Itis the quantum of the electromagnetic field includingelectromagnetic radiation such as light and radio waves and theforce carrier for the electromagnetic force even when static viavirtual particles The invariant mass of the photon is zero italways moves at the speed of light in a vacuumLike all elementary particles photons are currently bestexplained by quantum mechanics and exhibit waveparticle dualityexhibiting properties of both waves and particles For example asingle photon may be refracted by a lens and exhibit waveinterference with itself and it can behave as a particle withdefinite and finite measurable position or momentum though notboth at the same time as per Heisenbergs uncertainty principleThe photons wave and quantum qualities are two observable aspectsof a single phenomenonthey cannot be described by any mechanicalmodel2 a representation of this dual property of light thatassumes certain points on the wavefront to be the seat of theenergy is not possible The quanta in a light wave are notspatially localizedThe modern concept of the photon was developed gradually byAlbert Einstein in the early 20th century to explain experimentalobservations that did not fit the classical wave model of lightThe benefit of the photon model is that it accounts for thefrequency dependence of lights energy and explains the ability ofmatter and electromagnetic radiation to be in
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