Chemical Engineering - Environmental Engineering - Discussion
Discussion Forum : Environmental Engineering - Section 5 (Q.No. 46)
46.
The weakest sound that can be heard by a person in a quiet environment is equivalent to __________ decibel.
Discussion:
2 comments Page 1 of 1.
Venkatesan said:
7 years ago
Human audible range is 20 - 20000 db.
Tejavat sreeram said:
5 years ago
It shoul be 20. -20000 hertz.
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