Question

If the intensity of sound from one source is 10,000 times that of another, how many times more is the decibel level of the louder sound than the quieter one?
4
40
10,000
not enough information is provided

Answer 1

in this example,

\[∆ dB = 10 \log_{10} (\frac{ 10,000 }{ 1 }) dB\]