In a Young’s double slit experiment, three polarizers are kept as shown in the figure. The

In a Young double slit experiment three polarizers are kept as shown in the figure. The transmission axes of P1 and P2 are orthogonal to each other. The polarizer P3 covers both the slits with its transmission axis at 45° to those of P1 and P2 . An unpolarized light of wavelength  and intensity I0 is incident on P1 and P2 . The intensity at a point after P3 where the path difference between the light waves from  

                                                     (JEE-2025)