Sound level is L = 10 log ( II0 ) decibels. A sound 1,000 times as intense as I0 has a level of:

  1. 30 dB
  2. 100 dB
  3. 40 dB
  4. 3 dB
Answer

A) 30 dB

L = 10 log 10^3 = 10 3 = 30 dB. SLO M-09-A-08 · Application

Mathematics MCQ · More Real Numbers MCQs · Practise