Question

name the equipment which works at frequencies higher than 20000 hertz?​

Plz answer its urgent!!

Answer 1

Answer:

any sound with the frequency of 20000 Hz or more is called as ultrasound.

Ultrasound is used in hospitals [ ultrasound machines ].

These machines are used to find any injuries of the bone or tissue of a person by sending ultrasound through their body.

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