Science, asked by godseanil65, 4 days ago

what do you mean by ultrasonics std 5 from dav school

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Answered by azmilarifkv

Answer:

Ultrasonics, vibrations of frequencies greater than the upper limit of the audible range for humans—that is, greater than about 20 kilohertz. The term sonic is applied to ultrasound waves of very high amplitudes.

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what do you mean by ultrasonics std 5 from dav school​

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what do you mean by ultrasonics std 5 from dav school