How to Calculate Fringe Width?
Fringe Width calculator uses Fringe Width=(Wavelength*Distance between slits and screen)/Distance between two coherent sources to calculate the Fringe Width, Fringe Width is the distance between two maxima of successive order on one side of the central maxima. Fringe Width and is denoted by β symbol.
How to calculate Fringe Width using this online calculator? To use this online calculator for Fringe Width, enter Wavelength (λ), Distance between two coherent sources (d) and Distance between slits and screen (D) and hit the calculate button. Here is how the Fringe Width calculation can be explained with given input values -> 400 = (2*0.2)/0.1.