Astrophysics (Index)About

Planck constant

(h, Planck's constant)
(quantum of action in quantum mechanics)

The Planck constant (h) is 6.62607015 × 10-34 m2 kg/s. The relation of a photon's energy (E) to frequency (F) is:

E = h × f

The reduced Planck constant (aka Dirac constant, abbreviated ) is h/2π, which is convenient because many equations incorporate this expression.


(physics,constant,quantum mechanics)
Further reading:
http://en.wikipedia.org/wiki/Planck_constant
https://astronomy.swin.edu.au/cosmos/P/Planck%27s+Constant
https://physics.nist.gov/cgi-bin/cuu/Value?h

Referenced by pages:
black-body radiation
Bohr model
Brackett series
carbon monoxide (CO)
Compton wavelength
de Broglie wavelength
frequency
kelvin (K)
Lyman series (L)
Paschen series
photon energy
Planck function
Planck units
Saha equation
Stefan-Boltzmann constant (σ)
Heisenberg uncertainty principle
Wien approximation

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