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Infrasonic Sound

Ultrasonic so...

Question

Ultrasonic sound have frequency ___.

A

below 20 Hz

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B

between 20-2,000 Hz

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C

between 2,000-20,000 Hz

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D

above 20,000 Hz

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Solution

The correct option is D above 20,000 Hz
Ultrasonic refers to sound having frequency higher than the upper audible limit of human hearing. It has frequency above 20,000 Hz.

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