Neural Control and CoordinationHard

Question

What is the intensity of sound in normal conversation ?

Options

A.10-20 dB
B.35-60 dB
C.70-90 dB
D.120-150 dB

Solution

The word noise is taken from the Latin word nausea and is defined as unwanted or unpleasant sound that causes discomfort. Intensity of some noise sources is as follows :
       

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