Question

What are ultra sonic vibrations??​

Answer 1

Explanation:

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Vibrations above 20,000 Hz frequency range , are ultrasonic vibrations.

Humans cannot hear them!

Answer 2

Answer:

your answer is here buddy....

the word itself says...ultra sonic vibration..

these are the vibration that are very strong enough and are clear sounds.

these are mostly used in electrical industries

it's range will be more than 20000 hz