Resolve
RDF Terms

Kreisrepetenz

angular wavenumber

liczba falowa kątowa

nombre d'onde angulaire

numero d'onda angolare

número de onda angular

número de onda angular

عدد موجى زاوى

角波数

角波数

Applicable units are those of quantitykind:AngularWavenumber

"wavenumber" is the spatial frequency of a wave - the number of waves that exist over a specified distance. More formally, it is the reciprocal of the wavelength. It is also the magnitude of the wave vector.

http://en.wikipedia.org/wiki/Wavenumber

http://www.iso.org/iso/catalogue_detail?csnumber=31897

$k = \frac{2\pi}{\lambda}= \frac{2\pi\upsilon}{\upsilon_p}=\frac{\omega}{\upsilon_p}$, where $\upsilon$ is the frequency of the wave, $\lambda$ is the wavelength, $\omega = 2\pi \upsilon$ is the angular frequency of the wave, and $\upsilon_p$ is the phase velocity of the wave. Alternatively: $k = \frac{p}{\hbar}$, where $p$ is the linear momentum of quasi free electrons in an electron gas and $\hbar$ is the reduced Planck constant ($h$ divided by $2\pi$); for phonons, its magnitude is $k = \frac{2\pi}{\lambda}$, where $\lambda$ is the wavelength of the lattice vibrations.

"wavenumber" is the spatial frequency of a wave - the number of waves that exist over a specified distance. More formally, it is the reciprocal of the wavelength. It is also the magnitude of the wave vector.

k

Kreiswellenzahl

angular repetency

repetencja kątowa

repetência angular

répétence angulaire

تكرار زاوى

belongs to SOQ-ISO