20Hz
None. The speed of sound in air doesn't depend on its frequency.(If it did, then a person yelling to you from a distance would sound all garbled, becauseeach frequency in his voice would reach your ear at a slightly different time.)
No, the ear cannot distinguish two pure tones having the same frequency and amplitude.
The average response of a human ear at the ear drum is flat to about 500 Hz with a peak around 2.5KHz.
7 hz
Due to conduction deafness.
Pitch is often used to represent the frequency of a sound in music. It is distinguished from frequency though, because pitch involves how a human perceives that sound.
20Hz
None. The speed of sound in air doesn't depend on its frequency.(If it did, then a person yelling to you from a distance would sound all garbled, becauseeach frequency in his voice would reach your ear at a slightly different time.)
No, the ear cannot distinguish two pure tones having the same frequency and amplitude.
The ear responds logarithmically to different sounds. The ear which is divided into inner ear, outer ear and middle ear responds differently according to sound frequency and intensity.
The average response of a human ear at the ear drum is flat to about 500 Hz with a peak around 2.5KHz.
The eardrum
7 hz
Tone is a pure sound. Typically, a fixed frequency makes a single tone. In the ear (human) a tone stimulates (there are restrictions) only one part of the ear. What is tone in ear?
-- The highest frequency of sound audible to the human ear is of the order of 20,000 Hz.-- The lowest frequency of light visible to the human eye is of the order of 375,000,000,000,000 Hz.
The lowest frequency that the human ear can detect is that of 20Hertz.