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  • The intensity produced by one source is 30 dB. If two such coherent sources are surrounded together with zero phase difference, then the intensity level will beO

The intensity produced by one source is 30 dB. If two such coherent sources are surrounded together with zero phase difference, then the intensity level will be

Option: 1

60dB


Option: 2

33 dB


Option: 3

40 dB


Option: 4

36 dB


Answers (1)

best_answer

\begin{aligned} I_R & =I+10 \log \left(\frac{8 I}{I}\right) \\ & =30+3 \times 0.3=39 \approx 40 \mathrm{~dB} \end{aligned}

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Sayak

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