You are standing in the middle of a large room listening to a cacaphony of sound

Question

You are standing in the middle of a large room listening to a cacaphony of sounds. Rank the intensity level of the sounds from each source (1=loudest, 2= next loudest, ...) Consider all objects to be right next to you. If two values are within 0.1 dB from each other, consider them to be the same.
1 2 3 4 5  An object emitting a sound with an intensity level of 90dB.
1 2 3 4 5  One hundred buzzers each producing a sound with intensity level of 70dB.
1 2 3 4 5  Ten buzzers each producing a sound with intensity level of 80dB.
1 2 3 4 5  Four buzzers each producing a sound with intensity level of 84dB.
1 2 3 4 5  Two buzzers each producing a sound with intensity level of 87dB.

Explanation / Answer

a) x = 10^(9.0) *
x = 10^(9)

b) x = 10^(7.0) * 100
x = 10^(9)



c) x = 10^(8.0)*10

x=10^9

d)  x = 10^(8.4) * 4
x = 10^(8.4 + log(4) )
x = 10^(9)

e) x = 10^(8.7) * 2
x = 10^(8.7 + log(2) )
x = 10^(9)

all will give the same intensity of sound

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