Wave Optics

Two polaroide \(\mathrm{A}\) and \(\mathrm{B}\) are placed in such a way that the pass-axis of polaroids are perpendicular to each other. Now, another polaroid \(\mathrm{C}\) is placed between \(\mathrm{A}\) and \(\mathrm{B}\) bisecting angle between them. If intensity of unpolarized light is \(\mathrm{I}_{0}\) then intensity of transmitted light after passing through polaroid \(\mathrm{B}\) will be: