At which level sound is painful -: (A) 100-120dB, (B) 80-85dB, (C) 60-65dB, (D) 20-25dB
Answer is A. Intensity

Whisper - 30 dB
Normal conversation - 60 dB
Shout - 90 dB
Discomfort of ear - 120 dB
Pain in ear -130 dB

Ref. Dhingra, 6/e, p 19