Question

define infrasonic waves

Answer 1

Infrasonic Sound. The term "infrasonic" applied to sound refers to sound waves below the frequencies of audible sound, and nominally includes anything under 20 Hz. Sources of infrasound in nature include volcanoes, avalanches, earthquakes and meteorites.

Answer 2

Hi friend_______,

Infrasonic waves:

★ These are sound waves with frequency below 20 Hz that cannot be heard by human ear.

★ Eg: Waves produced during earthquake, ocean waves, sound produced by whales, etc..