3 groups of people are having separate conversations in a room. the sound of eac
ID: 1603974 • Letter: 3
Question
3 groups of people are having separate conversations in a room. the sound of each conversation has an intensity of 1.4x10^-5 watts per square meter. what is the decibel level of the combined conversations in the room? 3 groups of people are having separate conversations in a room. the sound of each conversation has an intensity of 1.4x10^-5 watts per square meter. what is the decibel level of the combined conversations in the room? 3 groups of people are having separate conversations in a room. the sound of each conversation has an intensity of 1.4x10^-5 watts per square meter. what is the decibel level of the combined conversations in the room?Explanation / Answer
The equation which relates the intensity of a sound wave to its decibel level is:
dB = 10 * log( I / 1.0 x 10-12 W/m2)
where I = intensity of the sound in units of W/m2
Total intensity =3*1.4*10^-5 =4.2*10^-5
using the above formulae, dB=76.232
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