Highest harmonic of a string within typical human's audible range

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SUMMARY

The highest harmonic of a 16-meter string with a linear density of 0.015 g/cm and a tension of 557 N that falls within the typical human audible range (up to 20,000 Hz) is calculated to be 1050 harmonics. The wave speed is determined using the formula v = sqrt(F/u), resulting in a speed of 609.37 m/s. The wavelength is then derived from the relationship v = lambda * frequency, leading to a wavelength of approximately 0.0304685 m. This wavelength corresponds to the harmonic number calculated using lambda = 2 * Length / n.

PREREQUISITES
  • Understanding of wave mechanics and harmonic frequencies
  • Familiarity with the concepts of linear density and tension in strings
  • Knowledge of the wave speed formula v = sqrt(F/u)
  • Ability to manipulate equations involving wavelength and frequency
NEXT STEPS
  • Explore the relationship between tension and frequency in string instruments
  • Learn about the harmonic series and its applications in acoustics
  • Investigate the effects of varying string length and density on harmonic frequencies
  • Study the principles of sound wave propagation in different media
USEFUL FOR

Physics students, acoustics researchers, and string instrument makers interested in understanding harmonic frequencies and their implications in sound production.

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Homework Statement



What is the highest harmonic of this string that is within the typical human's audible range (up to 20000 Hz)

String length of 16m
u = liner density = 0.015 g/cm = 0.0015 kg/m
stretched tension of the string = 557N

Homework Equations



v= sqrt ( F/ u)

v= lamba * frequency

lamba = 2 Length / n


The Attempt at a Solution



v= sqrt ( F/ u) = sqrt ( 557/0.0015 ) = 609.37

up to human's typical audible frequency = 20000 Hz

v= lamba * frequency
609.37 = lamba * 20 000 Hz
lamba = 0.0304685

therefore lamba = 2 length /n

0.0304685 = (2* 16) / n

n=1050.265

Ans: the highest harmonic of the string that is within human's audible range = 1050 harmonics.

Am i right?...
 
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