Question

Ultrasonic and infrasonic sound​

Answer 1

Explanation:

Audible sound waves whose frequencies are less than 20 Hz are in the 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. The audible range of dogs, cats, moths and mice extends into ultrasound frequencies.

Answer 2

Explanation:

ULTRASONIC SOUND:

Ultrasonics, vibrations of frequencies greater than the upper limit of the audible range for humans—that is, greater than about 20 kilohertz. The term sonic is applied to ultrasound waves of very high amplitudes.

Some animals like bats, dogs and dolphins can hear ultrasonic sounds.

INFRASONIC SOUND:

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

For example, some animals, such as whales, elephants and giraffes communicate using infrasound over long distances. Avalanches, volcanoes, earthquakes, ocean waves, water falls and meteors generate infrasonic waves.

HOPE IT HELPS.

THANK YOU. ☺️