At a Distance of 2

question 38

Multiple Choice

At a distance of 2.00 m from a point source of sound, the intensity level is 80.0 dB. What will be the intensity level at a distance of 4.00 m from this source? The lowest detectable intensity is 1.0 × 10^-12 W/m².

• A) 77.0 dB
• B) 74.0 dB
• C) 60.0 dB
• D) 40.0 dB
• E) 20.0 dB

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