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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.
Which part of the human ear vibrates?
Ear drum
What are ears divided into?
The divisions of the human ear are outer ear, middle ear, and inner ear.
What main regioin of the human ear contains the ear canal?
Outer ear
Frequency response of the human ear?
The average response of a human ear at the ear drum is flat to about 500 Hz with a peak around 2.5KHz.
What main region of the human ear contains the ear canal?
External ear contains ear canal.
Where in the human body are the anvil and stirrups located?
there is no such bone
What are facts about the human ear?
the middle ear is the smallest bone in the body
Could radiocarbon dating be useful in dating the age of ear?
No. The ear decomposes and doesn’t stay on the skull.
What is the maximum sound level is safe for human ear in DB?
What is the maximum sound level is safe for human ear
What do ear moon turtle car have in common?
they are all useful
