Two people are talking at a distance of 3.0 m from where you are and you measure the sound intensity as 1.1 × 10-7 W/m2. Another student is 4.0 m away from the talkers. What sound intensity does the other student measure?
A) 6.2 × 10-8 W/m2
B) 1.5 × 10-7 W/m2
C) 8.3 × 10-8 W/m2
D) 7.8 × 10-7 W/m2
E) 2.5 × 10-8 W/m2
A
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