Combining two sounds of equal intensity will give a sound level ___________ than the sound level due to just one of them.
A)twice as loud
B)3 dB higher
C)10 dB higher
D)2 dB higher

Question

Quizplus · Accepted Answer

When two sounds of equal intensity are combined, the resulting sound level increases by 3 dB, which is equivalent to doubling the power of the sound. Therefore, choice B, which states that the sound level is 3 dB higher, is the correct answer. Choices A, C, and D are all incorrect because they do not accurately describe the increase in sound level that occurs when two sounds of equal intensity are combined.

Combining Two Sounds of Equal Intensity Will Give a Sound