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sounds that are below 20hz are called INFRASONIC/Subsonic. These kinds of frequencies are used by the military for experiments. If you used Subsonic Frequencies below 20hz in I-dosing, You would have catastrophic cell death in every organ, causing them to shoot blood up into the mouth, and it also triggers your nerves to preform involuntary muscle movements, and death will come anywhere from 10-20 Sec. In other words, (My favourite phrase about subsonic frequencies,) Hertz Hurts.
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∙ 13y ago
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∙ 13y ago20 Hz is the lowest possible sound that can be heard by humans. Above that normal sound. Maybe you meant greater than 20kHz (20,000Hz). Above that is ultrasound, that can not be heard by humans.
Wiki User
∙ 14y agosounds with frequencies greater than 20 khz are called 'Ultrasonic sound' or 'ultrasound'.
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∙ 7y agoSuch sound is called "infrasound". Note that 20 Hz is the lower limit of what is considered normal hearing for humans.
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∙ 7y agoThese are infrasound waves.
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∙ 14y agoInfrasonic
Wiki User
∙ 11y agoinfrasonic
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What Sound waves below 20 waves per second called?
They're called "subsonic".That makes sense. "Sub" means "under", and "sonic" refers to "sound"."Subsonic" waves are those with frequencies lower than sounds audibleto the human ear.
What are sound waves with frequencies below normal range?
Infrasounds (frequencies under 20 kHz)
What are sonic sound waves?
they are sound waves with frequencies ranging from 20 to 20,000 Hz
Do sound waves exist even if you can't hear them?
Yes, sound waves exist which are not audible to the human ear. Humans can hear sound waves having frequency between 20 - 20,000 Hz. Other all frequencies lie outside our hearing range and are called ultrasonic or supersonic waves.
What is the sound waves of frequencies above 20 k hz is called?
Frequencies above 20kHz are not audible to humans. Sounds above this frequency are called ultrasound.
What Sound waves below 20 waves per second called?
They're called "subsonic".That makes sense. "Sub" means "under", and "sonic" refers to "sound"."Subsonic" waves are those with frequencies lower than sounds audibleto the human ear.
What are sound waves with frequencies below normal range?
Infrasounds (frequencies under 20 kHz)
What are sonic sound waves?
they are sound waves with frequencies ranging from 20 to 20,000 Hz
Do sound waves exist even if you can't hear them?
Yes, sound waves exist which are not audible to the human ear. Humans can hear sound waves having frequency between 20 - 20,000 Hz. Other all frequencies lie outside our hearing range and are called ultrasonic or supersonic waves.
Compare ultrasonic and infrasonic?
The definition of infrasonic is relating to sound waves with a frequency below the limit of human hearing, 20 Hz. Ultrasonic relates to sound waves with a frequency above the limit of human hearing, 20,000 Hz.
What is subsonic sound?
Another term for this is infrasonic, and it means pertaining to below hearing. There natural frequencies that humans can hear which are high: 20,000 Hz and low: 20 Hz. An average human cannot hear sounds below the frequency of 20 Hz. That is subsonic. Subsonic is a term also applied to aircraft that travel at speeds less than the speed of sound. Supersonic means it travels faster than the speed of sound.
Why can you not hear the echo if you stand 20 meter away and shout towards it?
You are too close to the surface from which the sound waves are reflected. As a result you brain cannot distinguish between the original sound waves and the reflexted sound waves (the echo).
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!
Is there anything like types of sound energy?
Just like electromagnetic waves, sound can come at different frequencies; the properties of the sound change, depending on the frequency. The basic classification used reflects what we can hear: audible sound (about 20-20,000 Hz), ultrasound (above 20,000 Hz), and infrasound (anything below 20 Hz).
What is the sound waves of frequencies above 20 k hz is called?
Frequencies above 20kHz are not audible to humans. Sounds above this frequency are called ultrasound.
Sound waves audible to the human ear?
20 hz to 20,000 Hz
How are sound waves and electromagnetic waves alike?
Electromagnet radiation must be converted to mechanical movement within the range of audio (20-20khz) to be heard.
