Solve the problem.Let I0 be the intensity of sound at the threshold of human hearing. The decibel level of a sound with intensity I is given bydB = 10 log10
.If the intensity of a sound increases by a factor of 8, how is the decibel level affected? Round your answer to the nearest tenth.
A. The decibel level increases by 1.9.
B. The decibel level increases by 0.8.
C. The decibel level increases by 9.0.
D. The decibel level increases by 0.9.
Answer: C
Mathematics
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