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Electronics and Communication Engineering - Communication Systems - Discussion

Discussion Forum : Communication Systems - Section 9 (Q.No. 1)
Communication Systems
1.
If sound intensity is 8 W/m2, the dB level of this sound is about
5 dB
50 dB
129 dB
1290 dB
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
1 comments Page 1 of 1.
Kunal & Bharat said:   9 years ago
10 log10( 8/(1*10^(-12))).

(10 log(8000000000000))/(log(10)).

=> 129.0308998699194358564121668417347908030456964438632562393...
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