Question
(a) What is the intensity of a sound that has a level 7.00 dB lower than a $4.00 \times 10^{-9} \textrm{ W/m}^2$ sound? (b) What is the intensity of a sound that is 3.00 dB higher than a $4.00 \times 10^{-9} \textrm{ W/m}^2$ sound?
1. $7.98 \times 10^{-10} \textrm{ W/m}^2$
2. $7.98 \times 10^{-9} \textrm{ W/m}^2$
Solution Video