what is intensity of sound
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Sound intensity level also known as acoustic intensity is defined as the power carried by sound waves per unit area in a direction perpendicular to that area. The SI unit of intensity, which includes sound intensity, is the watt per square meter.
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Intensity is the amount of energy a sound wave has per unit of time. Intensity is measured in decibels, represented by dB. Softest sound: 0 dB. Harmful to hearing ≥ 85 dB.
Intensity of sounds
Whisper- 20 dB
Rainfall- 50 dB
Talking normally - 60 dB
Busy city traffic -80 dB
Cheer of crowd at sporting event -90 dB
Headphones at high volume -105 dB
Rock concert - 120 dB
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