Derive v = 2 l_nf_n for the nth harmonic

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SUMMARY

The discussion focuses on deriving the expression v = 2 l_n f_n for the nth harmonic, where v represents wave speed, l_n is the shortest distance between nodes, and f_n is the frequency of the nth harmonic. The relationship indicates that wave speed is directly proportional to both the shortest distance between nodes and the harmonic frequency. The participant also notes that the nth harmonic frequency is n times the fundamental frequency (f_o), and that l_n can be expressed as (λ_o / 2n). This establishes a clear mathematical relationship essential for understanding wave mechanics in harmonic systems.

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  • Understanding of wave mechanics and harmonic frequencies
  • Familiarity with the concept of wave speed (v)
  • Knowledge of the relationship between wavelength (λ) and frequency (f)
  • Basic calculus for derivatives and their physical interpretations
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  • Study the derivation of wave speed in different harmonic systems
  • Learn about the relationship between wavelength and frequency in wave mechanics
  • Explore the concept of fundamental frequency and its harmonics
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Northbysouth
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Homework Statement


Derive the expression v = lnfn where ln is the shortest distance between nodes for the nth harmonic.


Homework Equations


v = wave speed
ln = shortest distance between nodes for the nthharmonic
fn = frequency of the nth harmonic


The Attempt at a Solution



Is it asking me to take the derivative of the wave speed, which I believe would give me the acceleration of the wave?

So,

wave acceleration = 2*ln

Am I making any sense?
 
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nth harmonics of fo is n times fo. Similarly ln is equal to (lambda)o/2n.
Now proceed.
 

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