Planck constant


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Planck constant

or

Planck's constant

n
(General Physics) a fundamental constant equal to the energy of any quantum of radiation divided by its frequency. It has a value of 6.62606876 × 10–34 joule seconds. Symbol: h See also Dirac constant
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Quantum physics is a branch of physics dealing with physical phenomena at microscopic scales, where the action is on the order of the Planck constant.
Quantum-entropic logic theory offered a formula for information wave radiation quantum, which links in with energy of a system through Planck constant.
hfs]; the speed of light in vacuum c; the Planck constant h; the elementary charge e (charge of a proton); the Boltzmann constant k; the Avogadro constant [N.
The results can be used to define the kilogram in terms of the Planck constant that relates the frequency of a particle's wavefunction to its energy.
where [lambda] is wavelength, T is the absolute temperature, h is the Planck constant and c is the speed of light.
The Planck constant serves numerous roles in quantum mechanics, including setting limits on how much can be simultaneously known about a particle's momentum and position.
where [DELTA]E is the energy gained by the virtual particle during the time interval [DELTA]t, that is equivalent to the mass/energy of the real particle that would exchange with it, and h is the Planck constant.
Liu, Towards an electronic kilogram: an improved measurement of the Planck constant and electron mass, Metrologia 42, 431-441 (2005).
Kibble at England's National Physical Laboratory, this method offers a precise value of the Planck constant, from which one derives Avogadro's number.
The energy values and the neutron wave functions in such a system depend on m, g, on the Planck constant and on the quantum number n only.
The National Institute of Standards and Technology (NIST) watt balance experiment completed a determination of Planck constant in 1998 with a relative standard uncertainty of 87 X [10.