Wave Optics

Two wavelengths of sodium light \(590 \mathrm{~nm}\) and \(596 \mathrm{~nm}\) are used one after another to study diffraction due to single slit of aperture \(2 \times 10^{-6} \mathrm{~m}\). The distance between the slit and the screen is \(1.5 \mathrm{~m}\). The separation between the positions of first maximum of the diffraction pattern obtained in the two cases is