What Is the Intensity Level in Decibels of a Sound

question 3

Multiple Choice

What is the intensity level in decibels of a sound with intensity 10^-3 W/m²? The threshold of human hearing is 1.0 × 10^-12 W/m².

• A)30 dB
• B)60 dB
• C)90 dB
• D)96 dB

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