Planck's constant

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Planck's constant (plängks)

n. Symbol h

The constant of proportionality relating the energy of a photon to the frequency of that photon. Its value is approximately 6.626 × 10^-34 joule-seconds.

[After Max Karl Ernst Ludwig Planck.]

Planck's constant (plängks)

A physical constant that is used extensively in quantum mechanics and fixes the scale of quantization of many phenomena, such as the relation between the energy of a photon (a quantum of light) and its wavelength. Its value is approximately 6.626 × 10^-34 joule-seconds (equivalent to units of angular momentum). Planck's constant is fundamental to phenomena as the quantization of angular momentum and is used in Heisenberg's Uncertainty Principle. See also Dirac's constant quantize

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Noun

Planck's constant - the constant of proportionality relating the energy of a photon to its frequency; approximately 6.626 x 10^-34 joule-second

constant of proportionality, factor of proportionality - the constant value of the ratio of two proportional quantities x and y; usually written y = kx, where k is the factor of proportionality

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action angular momentum ascertain constant constant of proportionality de Broglie waves determine Dirac constant Dirac's constant Einstein's photoelectric law factor of proportionality find find out H magneton photon physics Planck constant Planck's law			2]R / R having the dimension of an energy and containing Planck's constant and (therefore) appropriately defined quantum potential. Toward an a-temporal interpretation of quantum potential by Fiscaletti, Davide; Sorli, Amrit / Frontier Perspectives However, this approach is not appropriate for time-of-flight neutron diffraction for which the measured time of flight t is related to d-spacing d as; t = (2 mL/ h)d sin [theta] where m = neutron mass L = neutron flight path h = Planck's constant [theta] = scattering angle and the time resolution dt/t is given by: dt/t = (dL/L) + (cot [theta]) d[theta]. Multidataset refinement resonant diffraction, and magnetic structures by Attfield, J. Paul / Journal of Research of the National Institute of Standards and Technology 1/2]] (1) where m, e, and h are the electron mass, charge on an electron, and Planck's constant, respectively, and [phi], s, V are the height of tunnelling barrier, the barrier's width and the voltage applied across the barrier, respectively. Effects of strain and temperature on the electrical properties of ... by Feng, Jiyun; Chan, Chi-Ming / Polymer Engineering and Science			plan information capability plan of action plan of attack plan on plan out plan position indicator plan range plan- planar planar process Planaria planarian Planarida Planarioid Planary planate planation Planch Plancher planchet planchette Planching Planck Planck constant Planck Max Karl Ernst Ludwig Planck's constant Planck's law Planck's radiation law plane plane angle Plane at infinity plane chart Plane curve plane figure plane geometry Plane iron Plane locus Plane of flotation Plane of polarization Plane of projection Plane of refraction plane polarization Plane problem plane sailing Plane scale plane seat plane section plane spotter plane surveying plane table plane ticket			Planck constant Planck constant Planck constant Planck distribution law Planck epoch Planck era Planck function Planck function Planck interval Planck law Planck law Planck law of black body radiation Planck law of black body radiation Planck law of black-body radiation Planck law of black-body radiation Planck length Planck locus Planck mass Planck Max Karl Ernst Ludwig Planck oscillator Planck radiation formula Planck radiator Planck radiator Planck spectrum Planck spectrum Planck time Planck volume Planck Wavelength Planck's blackbody function Planck's blackbody function Planck's constant Planck's function Planck's function Planck's law Planck's law Planck's law Planck's law of black body radiation Planck's law of black body radiation Planck's law of black-body radiation Planck's law of black-body radiation Planck's Law of Radiation Planck's Law of Radiation Planck's Natural Units Planck's Radiation Equation Planck's Radiation Equation Planck's radiation law Planck's radiation law Planck's reduced constant Planck's time Planck, Max Planck, Max Planck, Max (Karl Ernst Ludwig) Planck, Max (Karl Ernst Ludwig) Planck, Max Karl Ernst Ludwig Planckian locus Plancks constant Planctology Planctomyces Plancton Plancton Plancton

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