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Mathematics, 01.04.2020 02:48 189652

The loudness, L. measured in decibels (Db), of a sound intensity, I, measured in watts per square meter, is defined as
L-10log where lo - 10 - and is the least intense sound a human ear can hear. What is the approximate loudness of
dinner conversation with a sound intensity of 10-7?
-58 Db
-50 Db
9 Db
50 Db
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