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The faintest sound the human ear can det...

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

A

`2.94 xx 10^(-5) N//m^(2), 1.1 xx 10^(-11) m`

B

`2.94 xx 10^(-4) N//m^(2), 1.3 xx 10^(-11)`m

C

`2.94 xx 10^(-1) N//m^(2), 1.2 xx 10^(-11)`m

D

`2.94 xx 10^(-3) N//m^(2), 1.5 xx 10^(-11)` m

Text Solution

Verified by Experts

The correct Answer is:
A
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