Ultrasonic frequency range is

Below 20 Hz

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20 Hz to 20 kHz

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Above 20 kHz

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Solution

The correct option is C
Above 20 kHz

The audible sound has a frequency range between 20Hz to 20kHz. The frequency more than audible sound is called ultrasonic frequency. So frequency above 20 kHz is the ultrasonic frequency range.
Hence, the Ultrasonic frequency range is above 20 kHz.

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Similar questions

Write the audible, infrasonic & ultrasonic frequency range.

20 H z

20 k H z

Frequency of Ultrasonic wave is :-

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