If I₀ = 10^-12 W/m² Is the Threshold of Hearing,a

question 4

Multiple Choice

If I₀ = 10^-12 W/m² is the threshold of hearing,a sound with intensity I₁ = 10^-11 W/m² will give a certain decibel level.Suppose a new sound has an intensity I₂ = I₁²/I₀.What is the new decibel level?

• A)2.0
• B)20
• C)100
• D)it will square the decibel level

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