Home/Basic Physics/Waves/Wave number13. WavesWave numberIn 13. WavesFormulaCopy LaTeXk=2πλk=\frac{2\pi}{\lambda}k=λ2πTagsphysicsphysics formulawavesDetailThe wave number is 2π divided by the wavelength.Explore the ideaExplore the ideaFound an error? Contact us.Related formulasRelatedAngular frequency of a waveω=2πf\omega=2\pi fω=2πfOpen formulaOpen in sectionRelatedTraveling harmonic wavey(x,t)=Asin(kx−ωt+ϕ)y(x,t)=A\sin(kx-\omega t+\phi)y(x,t)=Asin(kx−ωt+ϕ)Open formulaOpen in section