The frequency of ultrasound is therefore greater than 20,000 hertz. Ultrasound, like audible sounds, is transmitted by means of longitudinal waves. Ultrasound is used in medicine to break up ...

Ultrasound close ultrasoundSound with a frequency greater than 20,000 Hz (20 kHz). waves have a frequency higher than the upper limit for human hearing - above 20,000 Hertz (Hz). Different species ...

Frequency is a measure of the number of vibrations a sound wave makes per second ... sounds in the frequency range between about 20 Hz to 20,000 Hz. Babies may be able to hear frequencies above ...