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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)
Trinn-for-trinn 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
Inndata
L = 0.5 m, v = 344 m/s, closed-open
Resultat
f₁ = 172 Hz, f₂ = 516 Hz, f₃ = 860 Hz
Odd harmonics only
Vanlige feil å unngå
- ✕Forgetting that closed pipes produce only odd harmonics
- ✕Using incorrect boundary conditions for the pipe type
Ofte stilte spørsmål
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).
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