Physics - Wave Optics Question with Solution | TestHub

A light source, which emits two wavelengths${\mathrm{\lambda }}_1=400\mathrm{ }\mathrm{n}\mathrm{m}$and${\mathrm{\lambda }}_2=600\mathrm{ }\mathrm{n}\mathrm{m}$, is used in a Young's double slit experiment. If recorded fringe widths for${\mathrm{\lambda }}_1$and${\mathrm{\lambda }}_2$are${\mathrm{\beta }}_1$and${\mathrm{\beta }}_2$and the number of fringes for them within a distance y on one side of the central maximum are${\mathrm{m}}_1$and${\mathrm{m}}_2$, respectively, then