Intensity of sound in normal conversation station is
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The word noise is taken from the Latin word nausea and is defined as unwanted or unpleasant sound that causes discomfort.
Decibels measure the ratio of a given intensity I to the threshold of hearingintensity, so that this threshold takes the value 0 decibels (0 dB).
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30-60dB...........
Hope it will help :)
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