Waves, Oscillations & Acoustics
4 terms
Wave Dispersion
Waves, Oscillations & Acoustics
N/A
The phenomenon where wave phase velocity depends on wave frequency or wavelength in a medium.
v_p = f(λ), d²ω/dk² ≠ 0
Wave Number
Waves, Oscillations & Acoustics
rad/m (or m⁻¹)
A spatial frequency measure expressing the number of radians or wave cycles per unit distance.
k = 2π / λ
Wave Packet
Waves, Oscillations & Acoustics
m
A short localized burst or envelope of wave energy formed by the superposition of multiple waves with slightly different frequencies.
Δx Δk ≥ ½
Waveform
Waves, Oscillations & Acoustics
N/A
The visual shape or graph of a signal or wave as a function of time or spatial position.
y = f(x - v t)