Sound Intensity Level in decibels (dB) Jet engine ......................... 120 ...
Sound Intensity Level in decibels (dB) Jet engine ......................... 120 ... Sound Intensity Level in decibels (dB) Jet engine ......................... 120 ...
"middle C"λ=5.2m λ=2.6m λ=1.3m λ=78cm λ=66cm λ=33cmE6 1318.51 HzD6 1174.66 HzC6 1046.50 HzB5 987.77 HzA5 880 HzG5 783.99 HzF5 698.46 HzE5 659.26 HzD5 587.33 HzC5 523.25 HzB4 493.88 HzA4 440 HzG4 392.00 HzF4 349.23 HzE4 329.63 HzD4 293.66 HzC4 261.63 HzB3 246.94 HzA3 220 HzG3 196.00 HzF3 174.61 HzE3 164.81 HzD3 146.83 HzC3 130.81 HzB2 123.47 HzA2 110 HzG2 98.00 HzF2 87.31 HzE2 82.41 HzD2 73.42 HzC2 65.41 HzSound Intensity Level in decibels (dB)Jet engine ......................... 120 dB = 10 0 watts/m 2Jackhammer ..................... 100 dB = 10 -2 watts/m 2LOUD music ....................... 90 dB = 10 -3 watts/m 2Busy street traffic ............... 80 dB = 10 -4 watts/m 2Yelling ................................ 70 dB = 10 -5 watts/m 2Conversation ...................... 60 dB = 10 -6 watts/m 2Soft music .......................... 40 dB = 10 -8 watts/m 2Quiet whisper .................... 20 dB = 10 -10 watts/m 2Rustle of leaves .................. 10 dB = 10 -11 watts/m 2Threshold of hearing ............ 0 dB = 10 -12 watts/m 2
"middle C"λ=5.2m λ=2.6m λ=1.3m λ=78cm λ=66cm λ=33cmE6 1318.51 HzD6 1174.66 HzC6 1046.50 HzB5 987.77 HzA5 880 HzG5 783.99 HzF5 698.46 HzE5 659.26 HzD5 587.33 HzC5 523.25 HzB4 493.88 HzA4 440 HzG4 392.00 HzF4 349.23 HzE4 329.63 HzD4 293.66 HzC4 261.63 HzB3 246.94 HzA3 220 HzG3 196.00 HzF3 174.61 HzE3 164.81 HzD3 146.83 HzC3 130.81 HzB2 123.47 HzA2 110 HzG2 98.00 HzF2 87.31 HzE2 82.41 HzD2 73.42 HzC2 65.41 Hz<strong>Sound</strong> <strong>Intensity</strong> <strong>Level</strong> <strong>in</strong> <strong>decibels</strong> (<strong>dB</strong>)<strong>Jet</strong> eng<strong>in</strong>e ......................... <strong>120</strong> <strong>dB</strong> = 10 0 watts/m 2Jackhammer ..................... 100 <strong>dB</strong> = 10 -2 watts/m 2LOUD music ....................... 90 <strong>dB</strong> = 10 -3 watts/m 2Busy street traffic ............... 80 <strong>dB</strong> = 10 -4 watts/m 2Yell<strong>in</strong>g ................................ 70 <strong>dB</strong> = 10 -5 watts/m 2Conversation ...................... 60 <strong>dB</strong> = 10 -6 watts/m 2Soft music .......................... 40 <strong>dB</strong> = 10 -8 watts/m 2Quiet whisper .................... 20 <strong>dB</strong> = 10 -10 watts/m 2Rustle of leaves .................. 10 <strong>dB</strong> = 10 -11 watts/m 2Threshold of hear<strong>in</strong>g ............ 0 <strong>dB</strong> = 10 -12 watts/m 2
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