Question

A loboratory uses an ultrasonic-scanner to trance tumar in tissue. The operting frequency of the 6 scanner is 4.2*10 hz.calculate the wavelength of sound in the tissue if the speed of the sound is 1700 m/s.

Answer 1

wave equation:
freq*wavelength=speed propogation
wavelength= 1700/4.2E??

I don't get your frequency.