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Sound Produced by Human

Ultrasound ha...

Question

Ultrasound has frequency of vibration________.

A

between 500 and 10000 Hz

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B

above 20000 Hz

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C

between 20 and 20000 Hz

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D

below 20 Hz

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Solution

The correct option is B
above 20000 Hz
The ultrasound equipment, familiar to us for investigating and tracking many medical problems, works at frequencies higher than 20,000 Hz.

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