Question

what are ultrasonics wave​

Answer 1

The waves having frequency more than 20,000 Hz are ultrasonic waves. Bats and rats can produce ultrasonic sounds.

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Answer 2

Answer:

ULTRA SONIC WAVES :

Explanation:

Ultrasound is sound waves with frequencies higher than the upper audible limit of human hearing. Ultrasound is not different from "normal" sound in its physical properties, except that humans cannot hear it. This limit varies from person to person and is approximately 20 kilohertz in healthy young adults.

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