At a Distance of 2

question 50

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