How to find the wavelength of a sound wave?

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SUMMARY

The wavelength of a sound wave can be calculated using the formula λ = v/f, where λ is the wavelength, v is the velocity of sound, and f is the frequency. For a 25 Hz sound wave, using the speed of sound at 340 m/s, the wavelength is 13.6 meters. For a 4.5 kHz sound wave, the same formula yields a wavelength of approximately 0.075 meters. The speed of sound is confirmed as the appropriate velocity to use in these calculations.

PREREQUISITES
  • Understanding of basic wave properties
  • Familiarity with the formula λ = v/f
  • Knowledge of the speed of sound in air (340 m/s)
  • Ability to convert frequency units (e.g., Hz to kHz)
NEXT STEPS
  • Research the effects of temperature on the speed of sound
  • Learn about sound wave propagation in different mediums
  • Explore the relationship between frequency and pitch in sound waves
  • Investigate advanced wave equations for varying conditions
USEFUL FOR

Students studying physics, acoustics enthusiasts, and anyone needing to calculate sound wave properties for academic or practical applications.

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Homework Statement


What is the wavelength of a 25 Hz sound wave? What is the wavelength of a 4.5 kHz sound wave?


Homework Equations


wavelength = velocity / frequency or λ = v/f


The Attempt at a Solution


I know that I'm supposed to plug the 25 into the equation, but he didn't give us a velocity, so now I'm stuck. That's what I need help with. :/
The speed of sound is 340 m/s
is that what I'm supposed to use for velocity?
 
Last edited:
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The speed of sound ?
 

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