Quadrupling the power output from a speaker emitting a single frequency will result in what increase in loudness?
A)17 dB
B)7.0 dB
C)6.0 dB
D)1.4 dB
E)0.48 dB

Name: Quadrupling the power output from a speaker emitting a single frequency will result in what increase in loudness? A)17 dB B)7.0 dB C)6.0 dB D)1.4 dB E)0.48 dB
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Question

Quadrupling the power output from a speaker emitting a single frequency will result in what increase in loudness?
A)17 dB
B)7.0 dB
C)6.0 dB
D)1.4 dB
E)​0.48 dB

Quizplus · Accepted Answer

The increase in loudness (measured in dB) when the power output is increased 4 times is given by:

20log10(4) = 6.02 dB

Therefore, the correct answer is option C) 6.0 dB.

Quadrupling the Power Output from a Speaker Emitting a Single