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The faintest sound the human ear can detect at a frequency of 1kHz (for which the ear is most sensitive) corresponds to an intensity of about 10^(-12)W//m^2(the so called threshold of hearing). Determine the pressure amplitude and maximum displacement associated with this sound assuming the density of air = 1.3kg//m^2 and velocity of sound in air = 332 m/s |
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Answer» `2.94 xx 10^(-5) N//m^2 , 1.1 xx 10^(-11) m` |
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