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Superposition
Interference of Light
All optical interferometers function by virtue of the interference fringes that they produce. Visibility of fringes Fringe visibility describes how good the interference pattern is formed by the superposition of two waves is. In simple words, in the interference pattern, we have bright parts (maximum intensity) and some parts that are dim in comparison (minimum intensity). V=(Imax-Imin)/(Imax+Imin)—————Eq.1 Here Intensity is given by-. I=I1+I2+2√I1I2cosф———————Eq.2 For Imax; ф=+1 & for Imin ; ф= -1
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