What if human is exposed to sound of frequency less than 20hz?
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if a human is exposed to sound of frequency less than 20 hertz ( known as infrasonic sounds ) we will not be able to hear it ,because the normal hearing range is about 20 hz - 20000hz.....sounds which are lower than 20 hz is not sensitive to human ear .....
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He/she will not be able to listen anything because the frequency range of hearing of human is 20hz to 20khz
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