Question

A person has a hearing range from 20Hz to 20KHz. what are the typical wavelength of sound waves in air corresponding to these two frequencies?(Speed of sound =344m/s)?​

Answer 1

Answer:

We have wavelength = speed of sound×frequency

so, for frequency = 20Hz, we have

wavelength = 20×344 m = 6880 m

for frequency=20000Hz, we have

wavelength = 20000×344 m

= 6880000 m

Hence, the wavelength of sound waves in air at frequency of 20 Hz is 6880 m and at frequency of 20kHz is 6880000m.