GK
UNITS DEVICES DIMENSIONS AND MEASUREMENTS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The unit of noise pollution (level) is -
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ppm
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decibel
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decimal
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None of these
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Explanation:
Detailed explanation-1: -Sound levels are measured in decibels (dB). It is a unit for expressing the relative intensity of sound on a scale from 0 to 130.
Detailed explanation-2: -Noise level is measured in decibels (dB). The louder the noise, the higher the decibels. Decibels can be adjusted to human hearing. Noise level is thus described in decibels A (dBA).
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