Decibel is the unit used for measuring :

  1. Speed of light
  2.  Intensity of heat
  3.  Intensity of Sound
  4.  Radiowave frequency
Anurag Mishra Professor Asked on 10th January 2016 in General Knowledge.
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Answer: (3) Intansity of Sound 

Anurag Mishra Professor Answered on 10th January 2016.
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