# When dealing with sound intensities and decibel levels, a convenient approximation (accurate to 2 significant figures) is: For every doubling of the intensity, the decibel level increases by 3.0. Suppose the sound level at some location is 85 dB. Find the decibel levels if the sound intensity is increased by factors of (a) 2.0, (b) 4.0, (c) 8.0, and (d) 16.

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When dealing with sound intensities and decibel levels, a convenient approximation (accurate to 2 significant figures) is: For every doubling of the intensity, the decibel level increases by 3.0. Suppose the sound level at some location is 85 dB. Find the decibel levels if the sound intensity is increased by factors of (a) 2.0, (b) 4.0, (c) 8.0, and (d) 16.

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Step 1

a). For an increase of sound intensity by a factor 2^n, the corresponding increase in the decibel level is (3 dB)n.

Step 2

b). For an increase of sound intensity by a factor 2^n, the corresponding increase in the decibel level is (3 dB)n.

Step 3

c). For an increase of sound intensity by a factor 2^n, the c...

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