Solve the problem.Use the formula ? = 10 log(I/Io), where the loudness of a sound in decibels is determined by I, the number of Watts/m2 produced by the sound wave, and  What is the intensity in Watts/m2 of a noise measured at 48 decibels? (Round to the nearest tenth.)

A. 6.3 × 10-7 W/m2
B. 1.2 × 1014 W/m2
C. 4.8 × 10-10 W/m2
D. 6.3 × 10-8 W/m2


Answer: D

Mathematics

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