2. Loudness (L), in decibels (dB), of a sound of intensity I is defined to be L = 10 log, where I, = 10-12 W (Watts per lo meter square) is the minimum intensity detectable by the human ear. a) Find the loudness L, in decibels (dB), of a trombone given the intensity is 10 10 I, . b) Find the intensity of a rock concert whose loudness is 115 decibels. c) What is the NIOSH Recommended Exposure Limit (REL) given in dB based on exposures at work 5 days per week?
2. Loudness (L), in decibels (dB), of a sound of intensity I is defined to be L = 10 log, where I, = 10-12 W (Watts per lo meter square) is the minimum intensity detectable by the human ear. a) Find the loudness L, in decibels (dB), of a trombone given the intensity is 10 10 I, . b) Find the intensity of a rock concert whose loudness is 115 decibels. c) What is the NIOSH Recommended Exposure Limit (REL) given in dB based on exposures at work 5 days per week?
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Transcribed Image Text:2. Loudness (L), in decibels (dB), of a sound of intensity I is defined to be L = 10 log÷, where Io =
10-12
m²
W
(Watts per
Io
meter square) is the minimum intensity detectable by the human ear.
10
a) Find the loudness L, in decibels (dB), of a trombone given the intensity is 10
I .
b) Find the intensity of a rock concert whose loudness is 115 decibels.
c) What is the NIOSH Recommended Exposure Limit (REL) given in dB based on exposures at work 5 days per
week?
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