learn.howToCalculate
learn.whatIsHeading
Standing waves form when waves reflect and interfere, creating stationary patterns with nodes and antinodes. They're essential in musical instruments and resonators.
Formel
The calculator finds resonant frequencies using f_n = n × v / (2L)
Trin-for-trin guide
- 1Enter the length of the medium and the wave type (open or closed ends)
- 2The calculator finds resonant frequencies using f_n = n × v / (2L)
- 3Results show all harmonic frequencies and wavelengths
Løste eksempler
Input
L = 0.5 m, v = 344 m/s, closed-open
Resultat
f₁ = 172 Hz, f₂ = 516 Hz, f₃ = 860 Hz
Odd harmonics only
Almindelige fejl at undgå
- ✕Forgetting that closed pipes produce only odd harmonics
- ✕Using incorrect boundary conditions for the pipe type
Ofte stillede spørgsmål
Why do open vs. closed pipes have different resonant frequencies?
Open pipes have antinodes at both ends (all harmonics), while closed pipes have nodes at one end (odd harmonics only).
What determines the fundamental frequency?
The fundamental depends on the medium's properties (v) and the cavity length (L).
Klar til at beregne? Prøv den gratis Standing Wave-beregner
Prøv det selv →