10
QuizMultiple Choice
Properties of Logarithms
Question 10 of 10 • NY-Algebra II Term 2 Hillcrest
The loudness, L, measured in decibels (Db), of a sound intensity, I, measured in watts per square meter, is defined as , where and is the least intense sound a human ear can hear. What is the approximate loudness of a dinner conversation with a sound intensity of 10–7?
Answer
A
–58 DbB
–50 DbC
9 DbD
50 Db