Question A.8: Suppose a jet testing its engines produces a sound intensity...
Suppose a jet testing its engines produces a sound intensity of I = 0.750 W at a given location in an airplane hangar. What decibel level corresponds to this sound intensity?
Decibel level β is defined by
\beta=10 \log \left(\frac{I}{I_{0}}\right)
where I_{0}=1 \times 10^{-12} W / m ^{2} is the standard reference intensity. Substitute the given information:
\beta=10 \log \left(\frac{0.750 W / m ^{2}}{10^{-12} W / m ^{2}}\right)=119 dB
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