siCAUTIONO dB does not mean zero intensityNВinTABLE 16-2inIntensity of Various Sounds20SoundLevel Intensity(dB) (W/m2Sourceof the SoundTJet plane at 30 mThreshold of pain1401001201Loud rock concert12011 x 102Siren at 30 m1001 x 103Truck traffic90Busy street trafficNoisy restaurant1 x 101 x 10 S3 x 101 x 10-81 x 10-70Talk, at 50 cm65Quiet radio40Whisper301 x 1011Threshold of hearing 01 x 1012Rustle of leaves10

Question
Asked Oct 20, 2019
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How many orders of magnitude is the intensity increase between a quiet radio and busy street traffic

si
CAUTION
O dB does not mean zero intensity
N
В
in
TABLE 16-2
in
Intensity of Various Sounds
20
Sound
Level Intensity
(dB) (W/m2
Source
of the Sound
T
Jet plane at 30 m
Threshold of pain
140
100
120
1
Loud rock concert
120
1
1 x 102
Siren at 30 m
100
1 x 103
Truck traffic
90
Busy street traffic
Noisy restaurant
1 x 10
1 x 10 S
3 x 10
1 x 10-8
1 x 10-
70
Talk, at 50 cm
65
Quiet radio
40
Whisper
30
1 x 1011
Threshold of hearing 01 x 1012
Rustle of leaves
10
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si CAUTION O dB does not mean zero intensity N В in TABLE 16-2 in Intensity of Various Sounds 20 Sound Level Intensity (dB) (W/m2 Source of the Sound T Jet plane at 30 m Threshold of pain 140 100 120 1 Loud rock concert 120 1 1 x 102 Siren at 30 m 100 1 x 103 Truck traffic 90 Busy street traffic Noisy restaurant 1 x 10 1 x 10 S 3 x 10 1 x 10-8 1 x 10- 70 Talk, at 50 cm 65 Quiet radio 40 Whisper 30 1 x 1011 Threshold of hearing 01 x 1012 Rustle of leaves 10

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Expert Answer

Step 1
Given
Inten fly of guiet badio, T, = 1x10 /m
Intensiy of Aeet fraffe, Tz = 1 xL W/m
Sound lerel of guled adioi B, = 40 dB
2
Sound lerel of street faffc, B2 = 80 d
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Given Inten fly of guiet badio, T, = 1x10 /m Intensiy of Aeet fraffe, Tz = 1 xL W/m Sound lerel of guled adioi B, = 40 dB 2 Sound lerel of street faffc, B2 = 80 d

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Step 2
magnhucle
Inceate of n order of m
i egufvalent of muetiplying
quantily by lon
Ratio af both intensfffes
W/m2
1x 16 W/m2
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magnhucle Inceate of n order of m i egufvalent of muetiplying quantily by lon Ratio af both intensfffes W/m2 1x 16 W/m2

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Step 3
Lomparing with 1o" he intenaiy
ef Aound fn fncreau by four ordess
of mogn?tudle
D=four orders of magnitude
on
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Lomparing with 1o" he intenaiy ef Aound fn fncreau by four ordess of mogn?tudle D=four orders of magnitude on

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