During normal conversation sound heard at 1meter distance is
At a distance of 1 m , intensity of Whisper - 30 dB Normal conversation - 60 dB Shout - 90 dB Discomfo of the ear - 120 dB Pain in the ear - 130 dB Ref: Dhingra 7e pg 21.
60 dB
80 dB
90 dB
120 dB
Ear