Multiple Choice
Use the decibel scale to answer the question.
-How does the intensity of sound from a concert speaker at a distance of 20 meters compare to the intensity at a distance of 140 meters?
A) Factor of 7 weaker at 140 m.
B) Factor of 49 weaker at 140 m.
C) Factor of 196 weaker at 140 m.
D) Factor of 70 weaker at 140 m.
Correct Answer:
Verified
Correct Answer:
Verified
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