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nothing more than some waves reflections and refraction among the bodycomponents due to differ in densities for example bones and skins and some of reflected waves return back to the probe or the sound source which convert it to electrical energy which displayed on the screen and indicate of there is any problem or not
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∙ 14y ago
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Can a human ear hear ultrasonic waves?
i think we could because we hear the radio
Describe infrasonic and ultrasonic waves and explain why humans can not hear them?
The human ear cannot detect all possible frequencies. It has evolved to detect frequencies of sounds that are the most useful to humans, and has a maximum frequency range of about 20Hz to 20kHz, which decreases as you get older, particularly at the higher end. Infrasonic describes sounds that are too low in frequency to be heard by the human ear, and ultrasonic describes sounds that are too high in frequency to be heard by the human ear. These sounds cannot be heard by the human ear because they are outside of its range of capability.
Why can't we produce ultrasonic waves by loud speakers?
Loud speakers can produce ultrasonic waves. But since the normal purpose of loud speakers is to produce sounds for people to hear, there is seldom a reason to produce sounds that people can't hear (other than to annoy certain animals).
What is the difference between ultrasonic and ultrasound?
Ulrasound is sound that is too high pitched for the human ear to hear. Ultrasonic is used to describe a sound as being an ultrasound. So, ultrasonic is an adjective, and ultrasound is a verb.
Brief write up about ultrasonic sound?
"Ultrasonic" means higher frequency than humans can hear.Therefore, you can't hear it.Frequency too high for human ears.Dogs, cats, and bats can hear it if it's not toohigh.Short wavelength makes it good for imaging without radiation.Pictures made with ultrasonic sound are called "ultrasound" images.
Object used to hear sounds far away?
ultrasonic
Who can hear ultrasonic?
Elephants, fish, bats, dolphins, and newborn babys can hear the sounds.
Can humans hear the sonic range?
The Human hearing range IS the sonic range. Sounds which fall under the ultrasonic range are sounds which emit a higher frequency then we can hear (ie. dogs hear within this range). Infrasonic sounds emit lower frequencies then we can hear. The human hearing range or 'Sonic' range is between 16- 20 000 Hz, though changes with age
What is the given name to a sound which is to high for a human to hear?
ultrasonic
Can a human ear hear ultrasonic waves?
i think we could because we hear the radio
Frequencies too high-pitched for the human ear to hear?
Ultrasonic Frequencies
What are ultrasonic sounds?
Ultrasonic sounds are sounds that are above our hearing range.
Introduction of ultrasonic?
we know that human ear can not hear sounds of frequency less than 20Hz or more than about 20,000 Hz . Sounds of frequency higher than 20,000 Hz , which are inaudible to human ear, can be produced and are utilized in many useful ways. Such sounds are called ultrasonics
Describe infrasonic and ultrasonic waves and explain why humans can not hear them?
The human ear cannot detect all possible frequencies. It has evolved to detect frequencies of sounds that are the most useful to humans, and has a maximum frequency range of about 20Hz to 20kHz, which decreases as you get older, particularly at the higher end. Infrasonic describes sounds that are too low in frequency to be heard by the human ear, and ultrasonic describes sounds that are too high in frequency to be heard by the human ear. These sounds cannot be heard by the human ear because they are outside of its range of capability.
Why can't we produce ultrasonic waves by loud speakers?
Loud speakers can produce ultrasonic waves. But since the normal purpose of loud speakers is to produce sounds for people to hear, there is seldom a reason to produce sounds that people can't hear (other than to annoy certain animals).
Which animal can hear ultrasonic waves?
whale can hear ultrasonic sound waves.
Are there sounds we can not hear?
Human hearing is most effective in the range of about 20 Hz to 20,000 Hz. Slightly lower frequency sounds may be heard or "felt." Some sounds outside this range can be heard by some individuals. Some animals have a wider range of hearing, such as dogs who can hear higher pitched (higher frequency) sounds.
