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What is a measurement unit of intensity of a sound wave ____

2. What is a measurement unit of intensity of a sound wave ____.

1. Hertz
2. Radians
3. Phon
4. Decibels

Answer: D) Decibels

Explanation:

Decibels (dB) are a measurement unit of the intensity of a sound wave. It normally measures sound pressure level. Human hearing has a lower threshold of 0 dB at 1kHz. Sound amplitude may be determined using the following formula: amplitude [dB] = 20 logs 10.