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What is the intensity of sound in normal conversation : -
A
10 – 20 decibel
B
30 – 60 decibel
C
70 – 90 decibel
D
120 – 150 decibel
Detailed Solution
Sound intensity is measured in decibels (dB).
Normal conversation is about 30–60 dB (often quoted as about 60 dB).
A whisper is about 20 dB, heavy traffic about 80–90 dB, and a jet plane at take-off about 150 dB. Sound above 80 dB is harmful, and above 120 dB causes pain and can damage hearing.
So the intensity of sound in normal conversation is 30–60 decibel.
Normal conversation is about 30–60 dB (often quoted as about 60 dB).
A whisper is about 20 dB, heavy traffic about 80–90 dB, and a jet plane at take-off about 150 dB. Sound above 80 dB is harmful, and above 120 dB causes pain and can damage hearing.
So the intensity of sound in normal conversation is 30–60 decibel.