Three electromagnetic waves E₁ = Eosinwt, E₂ = Epcoswt and E3 = 2Eosin(wt + π) are superimposed at a point. If intensity due to

Question

Three electromagnetic waves E₁ = Eosinwt, E₂ = Epcoswt and E3 = 2Eosin(wt + π) are superimposed at a point. If intensity due to wave E₁ at that point is lo. then resultant intensity at this point comes out Klo, find the value of k.

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