A) 10-15 dB
B) 20-40 dB
C) 45-50 dB
D) 50-55 dB
Correct Answer: A
Solution :
The strength of sensation of sound perceived by the individual is called loudness, which is measured in decibels (dB). The level of audible sound is about 10 dB and of whisper is 10-15 dB and sometimes upto 20 decibel.
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