Solve the Problem $L = 10 \cdot \log \frac { 1 } { \mathrm { I } _ { 0 } }$

Multiple Choice

Solve the problem.
-Use the formula $L = 10 \cdot \log \frac { 1 } { \mathrm { I } _ { 0 } }$ , where the loudness of a sound in decibels is determined by $\mathrm { I }$ , the number of watts per square meter produced by the sound wave, and
I $0 = 10 ^ { - 12 }$ watts per square meter. A certain noise produces $9.92 \times 10 ^ { - 5 }$ watts per square meter of power. What is the decibel level of this noise?

A) $184 \mathrm { db }$
B) $70 \mathrm { db }$
C) $8 \mathrm { db }$
D) $80 \mathrm { db }$