Problem 3 A sound pressure level of 84dB(A) is measured 10 m away from a finite line source (train) which is 100 m long. How high is the sound pressure level mea- sured at distances of 20 m, 200 m and 400 m?
Problem 3 A sound pressure level of 84dB(A) is measured 10 m away from a finite line source (train) which is 100 m long. How high is the sound pressure level mea- sured at distances of 20 m, 200 m and 400 m?
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Transcribed Image Text:Problem 3
A sound pressure level of 84dB(A) is measured 10 m away from a finite line
source (train) which is 100 m long. How high is the sound pressure level mea-
sured at distances of 20 m, 200 m and 400 m?
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