Q-A beam of light consisting of two wavelengths 600 nm and 450 nm is used to obtain interference in Young's Double Slit experiment (YDSE). Find the least distance from the central maximum where the bright fringes due to both wavelengths coincide. The distance between the two slits is 0.4 mm and screen is placed at a distance of 1.0 m from the slits. Use assumptions
