A thin film of alcohol (n = 1.36) lies on a flat glass plate (n = 1.48). When monochromatic light is incident perpendicu
Posted: Fri Jul 15, 2022 8:02 am
A thin film of alcohol (n = 1.36) lies on a flat glass plate (n= 1.48). When monochromatic light isincident perpendicular to the surface (that is, normal to thesurface), the reflected light is aminimum for 512 nm and a maximum for 640 nm. What is the minimumthickness of the film?