How many times more intense is a 90 dB sound than a 40 dB sound?
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"For every 10db increase in sound, there is a 10-fold increase in sound intensity". Thus, when we increase the sound from 40db to 50db, intensity increases by 10 times, and when we increase it from 50db to 60db, intensity increases by another 10 times, and so on.
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