Question

24. What are ultrasonic vibrations? How is it important?

Answer 1

Ultrasonic vibrations would refer to sound waves that have a frequency higher then human hearing. The vibration themselves would be the physical vibration of the molecules in the medium in which the sound is traveling. Frequency Range 20 kHz to 60 kHz. That would be above 20 kHz, or 20,000 cycles per second.

Answer 2

ultrasonic vibrations are high frequency sound waves beyond the range of human hearing. Ultrasonic waves frequincy above 15000 cycle per second/ 20000 hertz.
1. In the field of communication(animals)
2.Ultrasonic cleaning
3.ultrasonic welding
this are some uses of ultrasonic vibration.