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Ultrasonic waves are those waves (a) To which man can hear (b) Man can not hear (c) Are of high velocity (d) Of high amplitude

Ultrasonic waves are those waves
(a) To which man can hear
(b) Man can not hear
(c) Are of high velocity
(d) Of high amplitude

Grade:12

1 Answers

SAHIL
3783 Points
5 years ago
Ultrasonic waves are sound waves transmitted above the human-detectable frequency range, usually above 20,000 Hz. They are used by some animals and in medical or industrial technological devices.

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