Step 1: Recall the formula for sound level in decibels (dB):
$L = 10 \log_{10} \frac{I}{I_0}$
where $L$ is the sound level in dB, $I$ is the intensity of the sound, and $I_0$ is the reference intensity (usually $10^{-12} \, \mathrm{W/m^2}$, but it doesn't matter
Show more…