what happens to an ultrasound wave that moves from muscle to bone

Question

The wavelength of the wave decreases
The frequency of the wave increases
The frequency of the wave decreases
The wavelength of the wave increases

Answer 1

The ultrasound wave will experience an increase in frequency and a decrease in wavelength when it moves from muscle to bone. This is because the speed of sound is faster in bone compared to muscle, causing the wave to be compressed and have shorter wavelengths.