Question

Compute the wavelength in air of ultrasound with a frequency of 63 kHz if the speed of sound is 344 m/s. ________m

Answer 1

The wavelength is related to the velocity of the wave and its frequency by the equation:

`\lambda=(v)/(f)`

In this case the velocity is 344 m/s and the frequency is 63 kHz, then we have:

`\lambda=(344)/(63*10^3)=0.0055`

Therefore, the wavelength is 0.0055 m