A Microphone of Surface Area 2

question 22

Multiple Choice

A microphone of surface area 2.0 cm² absorbs 1.1 mW of sound.What is the intensity of sound hitting the microphone?

• A)2.2 x 10^-5 W/m²
• B)0.55 W/m²
• C)2.2 W/m²
• D)2.8 W/m²
• E)5.5 W/m²

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