Question

Define audible sound and infrasonic sound.​

Answer 1

Answer:

Explanation:

Audible Sound: All the frequencies residing between the limit of 20Hz and 20KHz can be perceived by human beings. Therefore, these sound waves having frequencies within the range of 20Hz and 20KHz are known as audible sound.

Sounds having frequency lower than 20 Hz are known as infrasonic sounds.

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Answer 2

Audible sound waves whose frequencies are less than 20 Hz are in the infrasonic range. Sound produced by earthquakes, thunder, volcanoes are in Infrasonic range. Human Ear cant hear this sound but elephants and whales can hear this. Frequencies above 20,000 Hz are in the ultrasonic range.