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

  1. 900 dB
  2. 100 dB
  3. 90 dB
  4. 9 dB
Answer

C) 90 dB

L = 10 log 10^9 = 10 9 = 90 dB. SLO M-09-A-08 · Application

Mathematics MCQ · More Real Numbers MCQs · Practise