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Q: Noise is measured in which unit?
  • A. Watt
  • B. Faraday
  • C. Pascal
  • D. Decibel
Correct Answer: Option D - High pressure or high intensity sound is called unwanted noise. The normal measurement unit of sound intensity is decibel, so noise is also measured in decibels while the pressure is measured in pascal unit and the strength or power is measured in watt unit.
D. High pressure or high intensity sound is called unwanted noise. The normal measurement unit of sound intensity is decibel, so noise is also measured in decibels while the pressure is measured in pascal unit and the strength or power is measured in watt unit.

Explanations:

High pressure or high intensity sound is called unwanted noise. The normal measurement unit of sound intensity is decibel, so noise is also measured in decibels while the pressure is measured in pascal unit and the strength or power is measured in watt unit.