With Fig 12 3 in mind, establish that when two incoherent cosine squared fringe systems, each of the form I 0 cos 2 Icirc plusmn , overlap so that peaks fall on troughs, the resultant is I I 0 a uniform illumination Fig 12 3 Filter Source

Question: With Fig. 12.3 in mind, establish that when two incoherent cosine-squared fringe systems, each of the form I 0 cos 2 Î±, overlap so that

With Fig. 12.3 in mind, establish that when two incoherent cosine-squared fringe systems, each of the form I₀cos²Î±, overlap so that peaks fall on troughs, the resultant is I = I₀- a uniform illumination.

Fig. 12.3

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