Physics - Wave Optics Question with Solution | TestHub

A monochromatic beam of light falls on Young's double slit experiment apparatus as shown in figure. A thin sheet of glass is inserted in front of lower slit${\mathrm{S}}_2(\mathrm{\lambda }=600\mathrm{ }\mathrm{n}\mathrm{m}$is wavelength of source)




If the central bright fringe is obtained on screen at 'O' then