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Waves
Waves
Wave Number
k
=
2
π
λ
k = \frac{2\pi}{\lambda}
k
=
λ
2
π
k = 2π/λ
Spatial frequency of wave.
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Variables
k
Wave number
Radians per meter
rad/m
λ
Wavelength
Distance between crests
m
Derivation
k = 2π/λ, analogous to ω = 2π/T.
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