Answer to Question #303266 in Optics for Ria

Question

Write an expression for visibility (v) of interference pattern resulting from two coherent waves assuming (i) their fields to be parallel (ii) their fields to be equal and parallel? v= (I max -I min ) (I max +I min )

Answer 1

1)

$\frac{2\sqrt{I_1I_2}}{I_1+I_2},$

2)