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Ultrasound has a frequency of vibrations_

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Between

20 Hz

and

20000 Hz

Below

20 Hz

Above

20000 Hz

Between

500 Hz

and

10000 Hz

answer is C.

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Detailed Solution

Ultrasound has a frequency of vibrations above

20000 Hz

.
Ultrasound is a high-frequency sound which has a frequency above

20000 Hz

. The audible sound range for humans is between

20 Hz

20000 Hz

. As the ultrasound frequency is above the audible range for humans, they cannot hear it. Ultrasound frequencies are commonly used for medical diagnosis between

2 MHz

15 MHz

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