If the intensity is increased by a factor of 20, then how many decibels in the sound level increased?

If the intensity is increased by a factor of 20, then how many decibel

1.	If the intensity is increased by a factor of 20, then how many decibels in the sound level increased?
A.	18
B.	13
C.	9
D.	7
Answer» C. 9

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If the intensity is increased by a factor of 20, then how many decibels in the sound level increased?

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