How Do You Calculate The Number Of Fringes? In Young’s slits, the two beams that interfere have a width limited by the diffraction by the slits. The fringes are visible only in the common part of the two beams. As the central fringe is bright, we will roughly have N=1+2d/a visible fringes. What is the
What Is Meant By Fringe Width? Fringe width is the distance between two consecutive bright spots (maximas, where constructive interference take place) or two consecutive dark spots (minimas, where destructive interference take place). Let’s derive an expression for the linear and angular fringe width. Created by Mahesh Shenoy. Is Fringe width and band width same?
Why Are Fringes In Wedge Shaped Film Straight? The shape of the fringe depends on how the thickness of the air film enclosed varies. 2.In wedge shaped film the thickness of the air is constant over a straight line along the width of the wedge. 3. Hence the fringes are straight. Why are fringes straight?