Asked by jazz
In a pig-calling contest, a caller produces a sound with an intensity level of 110 dB.
How many such callers would be required to reach the pain level of 120 dB?
How many such callers would be required to reach the pain level of 120 dB?
Answers
Answered by
drwls
Going to 2 callers will add 3 db to the sound level, which is on a logarithmic scale. Doubling to 4 will add 3 db more.
Eight will add 3 db, making a total of 119 dB. You need ten callers to add 10 dB to the sound level of one caller.
That should have been obvious from the definition of dB.
Eight will add 3 db, making a total of 119 dB. You need ten callers to add 10 dB to the sound level of one caller.
That should have been obvious from the definition of dB.
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