Decibel Level The range of sound intensities that the
Chapter , Problem 4.4.84(choose chapter or problem)
Decibel Level The range of sound intensities that the human ear can detect is so large that a special decibel scale (named after Alexander Graham Bell) is used to measure and compare sound intensities. The decibel level (dB) of a sound is given by dB(I ) = 10 loga II0bwhere is l0the intensity of sound that is barely audible to the human ear. Use the decibel level formula to work Exercises 81 to 84. If the intensity of a sound is doubled, what is the increase in thedecibel level? (Hint: Find .)
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