NIELIT O Level Exam

Noise or noise pollution is measured in

Noise or noise pollution is measured in


A. phon

B. deci

C. decibel

D. decimal




Correct Answer is :

C. decibel



Explanation
Noise or noise pollution is measured in decibel. The decibel ( dB) is an unit which is used to measure sound level, but it is also widely used in electronics, signals and communication.
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