- #1
roam
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Homework Statement
By what factor is the intensity of sound at a rock concert louder than that of a whisper when the two intensity levels are 120 dB and 20 dB respectively?
Homework Equations
The sound level of a sound wave in decibles is
[tex]\beta = 10 log (\frac{I}{I_0})[/tex]
Also the ratio of intensities:
[tex]\beta_B - \beta_A = 10 log (\frac{I_B}{I_A})[/tex]
The Attempt at a Solution
Using the latter equation:
[tex]100 = 10 log (\frac{I_B}{I_A})[/tex]
Solving for the ratio I get 22026.4. Now how can I determine the factor one intensity is greater than the other? I'm not quite sure...