Q. At what level a sound becomes physical pain?
A. Above 50 dB
B. Above 70 dB
C. Above 80 dB
D. Above 100 dB
Answer: Above 80 dB
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A. Above 50 dB
B. Above 70 dB
C. Above 80 dB
D. Above 100 dB
Answer: Above 80 dB