Question:
What is the intensity of sound in normal conversation?
What is the intensity of sound in normal conversation?
Updated On: Jul 12, 2022
- 10-20 dB
- 30-60 dB
- 70-90 dB
- 120-150dB.
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The Correct Option is B
Solution and Explanation
Unit of sound level is decibel. As referrence intensity, sound of noise level is taken as 00 dB. 10 dB is ten times the threshold intensity, 20 dB 100 times, 40 dB is 104, 100dB is 10 times the threshold intensity. Moderate conversation produces 60 dB sound. Unwanted sound is noise and is therefore pollutant.
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