Engineering Board Exam Reviewer · Physics · medium
What is the sound intensity level of a sound with an intensity of 10-5 W/m2? (reference I0 = 10-12 W/m2)
- 70 dB
- 7 dB
- 50 dB
- 120 dB
Answer
A. 70 dB
Solution
= 10 (I/I0) = 10 (107) = 70 dB.
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