Respuesta :

davy94
f = 1/T = 20,000 so T = 1/20,000 
distance = speed * time 
L = 343 T 
L = 343/20,000 
L =. 01715 meters or about 1.7 centimeters
We know, Wavelength = speed / frequency

Highest frequency (normally that humans can hear) = 20 KHz
= 20,000 Hz  (for shortest wavelength)

Speed = 343 m/s

Substitute their values, 
wavelength = 343 / 20,000
w = 0.01715

In short, Your Answer would be: 0.01715 m

Hope this helps!

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