Sound Wave Intensity/Sound Level

[threewingedfury]

The intensity of sound wave A is 100 times that of sound wave B. Relative to wave B the sound level of wave A is:
a. -2 dB
b. +2 dB
c. +10 dB
d. +20 dB
e. +100 db

Using 10logbase10(I/Io) - 10log(100/1) - Would the answer be 20 dB?

 

[FredGarvin]

As long as you are calculating the relative intensities, yes. You are correct.