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You are standing 50 meters away from a source. What is the intensity level, β, of something that puts out an intensity that is ten times the threshold of hearing, (i.e. 10Io) when you are 50 meters from the source?

a) 0 deciBels
b) 1 deciBels
c)5 decibels
d)10 decibels
e)50 decibels

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