The decibel scale for measuring sound intensity describes how powerful a sound is. Zero decibels is the quietest sound an average human can hear, and 120

calculates the decibel level, where I is the intensity of the sound

decibels is where a sound starts to cause pain. The function D(I) = 10 log

-12

10

measured in watts of power per square meter. Use this function to find the decibel level of a jet plane with the given intensity. Round your answer to one

decimal place.

Jet plane: Intensity = 9.7 x 102 watts per square meter

The sound of a jet plane is approximately

decibels.

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