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Any frequency that is lower than those that humans can hear - that is, lower than about 20 Hz.

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13y ago

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What is the difference between ultra sonic and infrasonic sound?

sound waves with frequencies 20 hertz or lower are infrasonic and waves above 20,000hertz are ultra sonic!


What do you understand by following terms-infrasonic waves?

Sound waves at frequencies lower than humans can hear.


What are sound waves with frequencies above the normal human range of hearing?

Sound waves with frequencies above the normal human range of hearing are called ultrasoundUltrasoundUltrasonic for frequencies higher than a human can hear, and infrasonic for those frequencies below the human threshold of hearing.


Sound waves with frequencies above the normal human range of hearing are called what?

Sound waves with frequencies above the normal human range of hearing are called ultrasoundUltrasoundUltrasonic for frequencies higher than a human can hear, and infrasonic for those frequencies below the human threshold of hearing.


What are infrasonic and ultrasonic sound waves?

Ultrasonic and Infrasonic sound waves are waves that are not audible to human beings. The audible region contains sound waves of 16 Hz to 20,000 Hz.Infrasonic sound waves have frequencies below 16 Hz. For example, an earthquake.Ultrasonic sound waves have frequencies above 20,000 Hz. For example, x-rays.Grade 11 Physics


What is the difference between infrasonic and ultrasonic?

Infrasonic refers to sound waves below the frequency range of human hearing (below 20 Hz), while ultrasonic refers to sound waves above the frequency range of human hearing (above 20,000 Hz). Infrasonic waves are often produced by natural phenomena like earthquakes, while ultrasonic waves are commonly used in medical imaging and pest control.


What is the difference between ultrasonic and infrasonic sound waves?

Ultrasonic sound waves have frequencies higher than the upper limit of human hearing (20 kHz), while infrasonic sound waves have frequencies lower than the lower limit of human hearing (20 Hz). Ultrasonic waves are used in various applications such as medical imaging and cleaning, while infrasonic waves are produced by natural phenomena like earthquakes and some animal communication.


At what frequency is ultrasonic and infrasonic?

Human ears can hear frequencies between about 20 and 20,000 Hz, so anything below 20 is infrasonic, and anything above 20,000 Hz (20 kHz) is ultrasonic.


Frequencies below the range audible to the human ear are classified as?

Infrasonic


What word means denoting frequencies below the audible limit?

Infrasonic


Which type of sound wave is usually felt rather than heard?

The type of sound waves usually felt rather than heard are those with frequencies of less than 20 Hz.


What is the meaning of infrasonic sound?

Infrasonic sound refers to sound waves with frequencies below the range of human hearing, typically below 20 Hz. These low-frequency sounds can be produced by natural phenomena like earthquakes or by man-made sources like industrial machinery. Infrasound can affect humans by causing physical discomfort or even feelings of unease.