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photon
[ foh-ton ]
noun
- a quantum of electromagnetic radiation, usually considered as an elementary particle that is its own antiparticle and that has zero rest mass and charge and a spin of one. : γ
photon
/ ˈəʊɒ /
noun
- a quantum of electromagnetic radiation, regarded as a particle with zero rest mass and charge, unit spin, and energy equal to the product of the frequency of the radiation and the Planck constant
photon
/ ō′ŏ′ /
- The subatomic particle that carries the electromagnetic force and is the quantum of electromagnetic radiation. The photon has a rest mass of zero, but has measurable momentum, exhibits deflection by a gravitational field, and can exert a force. It has no electric charge, has an indefinitely long lifetime, and is its own antiparticle.
- See Note at electromagnetic radiationSee Table at subatomic particle
photon
- The quantum , or bundle of energy , in which light and other forms of electromagnetic radiation are emitted. ( See atom .)
Example Sentences
“But I worry people will be disappointed. You want people to have the direct experience of those photons from those objects going into their eyes and knowing what they’re looking at.”
In this process, the X-ray photons trigger a "molecular catapult effect": light atomic groups are ejected first, similar to projectiles fired from a catapult, while the heavier atoms -- bromine and chlorine -- separate more slowly.
Nonlinear Compton scattering requires an electron to absorb multiple laser photons while emitting a single high-energy gamma-ray photon.
When heated, the base layers accumulate thermal radiation, which can be thought of as a bath of photons.
Until now, however, they've focused primarily on detecting gamma rays from these axions' slow transformation into photons in the magnetic fields of galaxies.
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