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Two waves of same frequency but of amplitude a and 2a respectively superimpose over each other. The intensity at a point where the phase difference is `(3pi)/(2)`, will be proportional to :A. `9a^(2)`B. `3a^(2)`C. `a^(2)`D. `5a^(2)` |
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Answer» Correct Answer - D `Iprop A^(2)` `I=I_(1)+I_(2)+2sqrt(I_(1)+I_(2))cos phi` `I=5 a^(2)` |
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