Question

Audible range of frequency 20Hz to 20KHz. convert into wavelength range. velocity =340m/s

Answer 1

We Know That ,

Speed Of Sound = Frequency × Wavelength

For Lower Limit :

Let the wavelength be λ(l )

340=20×λ(l)

λ=340÷20 = 17m

For Upper Limit :

Let the wavelength be λ(u)

340=λ×20000

λ=340/20000 =  0.017m

So the audible wavelengths are : 17m - 0.017m

Answer 2

For sound waves in air, the speed of sound is 343 m/s (at room temperature and atmospheric pressure). The wavelengths of sound frequencies audible to the human ear (20 Hz–20 kHz) are thus between approximately 17 m and 17 mm, respectively.

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