What is the Decibel Level of Sound Produced by Two Persons in Conversation?

  1. About 10 db
  2. About 20 db
  3. About 30 db
  4. About 5 db
Monis Rasool Professor Asked on 9th November 2015 in Physics.
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  • 1 Answer(s)

    Answer: (3) About 30 db 

    Anurag Mishra Professor Answered on 1st January 2016.
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