The speed of sound in air is 340 m / s. The human ear has the greatest sensitivity at a wavelength of 17 cm.
| February 12, 2021 | education
The speed of sound in air is 340 m / s. The human ear has the greatest sensitivity at a wavelength of 17 cm. What is the frequency of this sound wave?
To find the frequency of a given sound wave, we apply the formula: ν = Vz / λ.
Constants and variables: Vz – speed of sound in air (Vz = 340 m / s); λ is the wavelength at which the human ear is most sensitive (λ = 17 cm = 0.17 m).
Let’s make a calculation: ν = Vs / λ = 340 / 0.17 = 2000 Hz = 2 kHz.
Answer: The frequency of a given sound wave should be 2 kHz.
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