A Sound Wave Radiates from a Source in All Directions

question 61

Multiple Choice

A sound wave radiates from a source in all directions.If the power of the sound source is 200 watts,then the intensity of the sound wave 100 m from the source is

• A) 2.2 milliWatts/m².
• B) 2.0 milliWatts/m².
• C) 1.8 milliWatts/m².
• D) 1.6 milliWatts/m².
• E) 1.2 milliWatts/m².

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