Question

what is the frequency of waves which are termed as ultrasonic

Answer 1

Ultrasound is the name given to sound waves that have frequencies greater than 20,000Hz (20 kHz).

Answer 2

the sound waves with a frequency higher than 20000 Hertz are known as ultrasonic sound waves.

it's uses are-

# for measuring the depth of water bodies.

# for finding wreck ships under the water.

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