A 70-dB sound relative to a 40-dB sound is more intense by a factor of
A)3.
B)30.
C)300.
D)1000.

Name: A 70-dB sound relative to a 40-dB sound is more intense by a factor of A)3. B)30. C)300. D)1000.
Brand: Quizplus
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Question

Quizplus · Accepted Answer

The decibel scale is logarithmic, and each 10 dB increase represents a tenfold increase in intensity. A 70-dB sound is 30 dB higher than a 40-dB sound, which means it is 10^3 (or 1000) times more intense.

A 70-DB Sound Relative to a 40-DB Sound Is More