What is the audible range of the average human ear?

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Answer 1

Explanation:

The average hearing range for a human is between 20 Hz to 20 kHz and uses three muscles to aid the hearing process.
The SI unit of frequency is the hertz (Hz).
The upper limit in average adults is often closer to 15–17 kHz.
Below 20Hz the frequency is called infrasonic frequency.
Above 20000Hz the frequency is called ultrasonic frequency.

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Sound waves are longitudinal mechanical waves and frequency can be defined as the number of wave cycles happening in one sec.
The types of sound waves whose frequencies are lower than the audible limit of human hearing are called Infrasonic waves.

Frequency can be divided into three categories based on their frequency range:

Audible sound waves: The frequency range of this wave is 20Hz 20000Hz. Humans can easily detect these types of waves.
Example: Sound produced by Vocal cords.
Infrasonic waves: The frequency range of these types of waves is below 20Hz. Humans cannot detect it.
Example: Sound produced by Earthquake, Volcanic eruption and ocean waves, etc.
Ultrasonic waves or Ultrasound waves: The sound frequency above 20,000Hz is known as ultrasonic waves. Humans cannot detect it too.