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What is The intensity of sound that does not cause ear damage- and explain in detail?
Ans. is 'a' Le., 80 o Intensity is the strength of sound which determines its loudness. It is usually measured in decibels (dB). o Following are intensities when a person is at a distance of one meter from a sound source. Whisper 30 dB Normal conversation 60 dB Shout 90 dB Discomfort of ear 120 dB Pain in ear 130 dB o A daily exposure up to 85 dB is the about the limit people can tolerate without substantial damage to their hearing.