In ultrasound the wavelength of the sound is much smaller than in normal sound.

Question

Quizplus · Accepted Answer

Ultrasound refers to sound waves with frequencies higher than the upper limit of human hearing (generally above 20,000 Hz). The wavelength of sound is inversely proportional to its frequency (higher frequency = shorter wavelength). Therefore, in ultrasound, where the frequency is much higher than in normal sound, the wavelength is much smaller.

In Ultrasound the Wavelength of the Sound Is Much Smaller