The intensity level is 65 dB at a distance 5.00 m from a barking dog. What would be a reasonable estimate for the intensity level if two identical dogs very close to each other were barking? You can
Ignore any interference effects.
A) 136 dB
B) 65 dB
C) 68 dB
D) 130 dB

Question

Quizplus · Accepted Answer

Doubling the number of identical sound sources (like two barking dogs instead of one) increases the intensity level by about 3 dB. Therefore, if one dog produces a sound level of 65 dB, two dogs would produce a sound level of 65 dB + 3 dB = 68 dB.

The Intensity Level Is 65 DB at a Distance 5