Twenty violins playing simultaneously with the same intensity combine to give an intensity level of 82.5 dB.
(a) What is the intensity level of each violin?
(b) If the number is increased to 40, will the combined intensity level be more than, less than, or equal to 165 dB? explain
The solution talks through each step of the calculations of sounds intensity levels performed in order to find the intensity of a single violin, and then the full twenty.