Physics - Wave Optics Question with Solution | TestHub

A parallel beam of light $(\lambda =5000\mathring{\mathrm{A}})$ is incident at an angle $\theta =30^{\circ }$ with the normal to the slit plane in a Young's double slit experiment. The intensity due to each slit is ${\mathrm{I}}_0$. Point O is equidistant from ${\mathrm{S}}_1$ and ${\mathrm{S}}_2$. The distance between slits is 1 mm, then :-