Question

What is the unit to measure the intensity of sound ?

Answer 1

The intensity of sound is measured in decibels, or dB, and its SI unit is W/m² (watts per metre square).

Answer 2

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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