Question

Ultrasound hos frequency of Vibraction​

Answer 1

Answer:

Ultrasound has frequency of vibration above 20,000 Hz .

Answer 2

Answer:

Ultrasound is sound waves with frequencies higher than the upper audible limit of human hearing. Ultrasound is not different from "normal" (audible) sound in its physical properties, except that humans cannot hear it. This limit varies from person to person and is approximately 20 kilohertz (20,000 hertz) in healthy young adults. Ultrasound devices operate with frequencies from 20 kHz up to several gigahertz.

hope It was clear enough...