Physics - Wave Optics Question with Solution | TestHub

Light of wavelength$600\mathrm{ n}\mathrm{m}$is incident normally on a slit of width$0.2\mathrm{ m}\mathrm{m}$. The angular width of the central maxima in the diffraction pattern is$n\times {10}^{-3} \mathrm{rad}$, then what is the value of$n$? (measured from minimum to minimum)