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What is the lowest a person can hear?
The lowest frequency that a human can typically hear is around 20 Hz, which corresponds to the lower end of the audible spectrum. Frequencies below this threshold are known as infrasound and are generally not perceivable by human ears. However, individual sensitivity may vary, and some people might detect sounds slightly below this range under certain conditions. Sounds at these low frequencies can still produce physical sensations even if they are not consciously heard.
What type of graph would be best to show the human blood group frequencies in various populations?
A bar graph would be the best choice to show the human blood group frequencies in various populations. This type of graph allows for easy comparison of the different blood group frequencies across populations, as each population can be represented by a separate bar. Additionally, it visually highlights the differences and similarities in blood group distribution, making the data more accessible and interpretable.
What is sonar frequency?
The frequencies on which sonar is used vary widely. Human hearing is usually cited as ranging as from 20 cycles per second (Hertz) to 20,000 cycles per second. There are many sonars that use frequencies in the 20 to 20,000 Hertz range. In general, the sonars that are used for short range underwater applications operate on a slightly higher frequency than those that are designed to look over long distances. But there are a lot of sonars which use frequencies far outside the range of human hearing. Medical imaging is the most popular use of sonar. The range of frequencies used by these devices range from 2 million cycles per second to 18 million cycles per second. These frequencies are far above what humans can hear.
Does the average human blink more or less than 100000 times a day?
The average human blinks about 15-20 times per minute, which adds up to approximately 14,400-19,200 times per day. Therefore, the average human blinks significantly less than 100,000 times a day.
Smallest interval perceptible to the ear?
The smallest interval perceptible to the human ear is known as the "just noticeable difference" (JND) in frequency, which is typically around 1 to 2 Hz at lower frequencies. This means that at frequencies such as 1000 Hz, a change of about 1-2 Hz can be detected by most individuals. However, the JND can vary based on several factors, including the frequency itself and the individual's hearing ability.
Can radiation be heard?
No, radiation cannot be heard. Radiation is a form of energy that travels in the form of waves or particles, but these waves are at frequencies outside the range of human hearing.
If subjected to sound frequencies of 25000 to 100000 cycles per second would be least affected?
Humans would be least affected by sound frequencies in that range, as our hearing is most sensitive to frequencies between 20 Hz and 20,000 Hz. Frequencies outside of this range are typically considered ultrasonic and are not audible to the average human ear.
Which frequencies of wave in the air can be heard as an audible sound by the human ear?
The audible range of frequencies for the human ear is typically between 20 Hz to 20,000 Hz. Frequencies below 20 Hz are infrasound, and frequencies above 20,000 Hz are ultrasound, both of which are generally not audible to humans.
What is the audible sound?
A sound that can be heard in ordinary human ear is audible sound. It is approximately between 20 to 2000 decibel in strength.sound which is audible.. I.e. sound you can hear, as opposed to sound beyond human hearing at very low or very high frequencies.sound that is capable of being heard; sound loud enough to be heard; sound that is actually heard.
What are the highest and lowest frequencies that can be heard in air?
The human ear can typically hear frequencies ranging from about 20 Hz to 20,000 Hz. Below 20 Hz are infrasound frequencies, and above 20,000 Hz are ultrasound frequencies, which are generally not audible to humans.
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.
What in db are the frequencies a human can hear?
In a typical human auditory system, the frequencies that can be heard range from about 20 Hz to 20,000 Hz. Sounds below 20 Hz are considered infrasound, while sounds above 20,000 Hz are considered ultrasound, which are generally inaudible to humans.
What range of frequencies can be heard by a human?
Humans can generally hear frequencies ranging from about 20 Hz to 20,000 Hz, with the ability to hear higher frequencies decreasing with age. This range is known as the audible spectrum and varies slightly from person to person.
What is the minimum frequency the human ear can hear?
The human ear can generally detect sounds with frequencies as low as 20 Hz. Below this frequency, the sound may be felt rather than heard.
What is something human cnt hear?
Some sounds that are at certain frequencies cannot be heard by a human ear. Some such sounds are a dog whistle, certain whale songs and dolphin and bat echolocation.
Sound waves with frequencies above 20000 hz?
Sound waves with frequencies above 20,000 Hz are considered ultrasonic. These frequencies are above the upper limit of human hearing and are commonly used in applications like medical imaging, cleaning, and animal communication.
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.
