📏〰️↗️

#wave vector #spatial frequency #wavenumber #wavelength #periodicity

〰️k→

#wave vector #k-vector #wavenumber #spatial frequency #wave equation

🌊🧭→

#wave vector #propagation #water wave #k-vector

⚛️〰️➡️

#wave vector #k-vector #k-space #wave-particle duality