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The audible range of human hearing has an upper-frequency limit of about:

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2000 Hz

2,000,000 Hz

2kHz

20kHz

answer is A.

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Detailed Solution

Sound waves are longitudinal mechanical waves, and frequency is the number of wave cycles that occur in a second. Infrasonic waves are sound waves with frequencies that are lower than the audible limit of human hearing.

The average human hearing range is 20Hz to 20kHz, and the hearing process is aided by three muscles.

The hertz (Hz) is the SI unit of frequency.

In most adults, the upper limit is closer to 15-17 kHz.

The frequency below 20Hz is referred to as infrasonic frequency.

The ultrasonic frequency is defined as a frequency greater than 20000Hz.

Hence, The audible range of human hearing has an upper-frequency limit of about 20kHz.

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