Choose the One Alternative That Best Completes the Statement or Answers

Multiple Choice

Choose the one alternative that best completes the statement or answers the question.
-Use the formula $\mathrm { D } = 10.0 \log \left( \mathrm { S } / \mathrm { S } _ { 0 } \right)$ , where the loudness of a sound in decibels is determined by $\mathrm { S }$ , the number of watt $/ \mathrm { m } ^ { 2 }$ produced by the soundwave, and $\mathrm { S } _ { 0 } = 1.00 \times 10 ^ { - 12 } \mathrm { watt } / \mathrm { m } ^ { 2 }$ . What is the intensity in watt $/ \mathrm { m } ^ { 2 }$ of a noise measured at 82 decibels? (Round to the nearest tenth.)

A) $8.2 \times 10 ^ { - 10 }$ watt $/ \mathrm { m } ^ { 2 }$
B) $1.6 \times 10 ^ { - 4 }$ watt $/ \mathrm { m } ^ { 2 }$
C) $1.6 \times 10 ^ { - 3 }$ watt $/ \mathrm { m } ^ { 2 }$
D) $3.6 \times 10 ^ { 15 }$ watt $/ \mathrm { m } ^ { 2 }$