Which one of the following properties distinguishes ultrasound from normal audible sound ........

General Science (Easy) Physics

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Which one of the following properties distinguishes ultrasound from normal audible sound?

Intensity

Speed of propagation

Frequency

Quality

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Explanation:

Frequency

-Ultrasound is not different from "normal" (audible) sound in its physical properties, except that humans cannot hear it. This limit varies from person to person and is approximately 20 kilohertz (20,000 hertz) in healthy young adults. Ultrasound devices operate with frequencies from 20 kHz up to several gigahertz.

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