Asked by Matt
While peforming a concert , Queen plays at average intensity levels of 2 W/m^2. Then during a sudden loud part of the music, the amplitude of the sound waves , initially A1 increases by a factor of 5. By how many decibels does the sound level increase?
Answers
Answered by
drwls
If amplitude increases by 5x, intensity (power/area) increases by 25x. That corresponds to 14.0 dB
(10 x Log10 of 25)
(10 x Log10 of 25)
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