Let I
0 be the intensity of sound at the threshold of human hearing. The decibel level of a sound with intensity I is given by
dB = 10 log
10
.
If the decibel ratings of two sounds differ by 2, how do the intensities of the sounds compare? Round your answer to the nearest tenth.
◦ One sound is 1.3 times as loud as the other.
◦ One sound is 3.0 times as loud as the other.
◦ One sound is 1.2 times as loud as the other.
◦ One sound is 1.6 times as loud as the other.