NEET 2023 Model Paper 2

Two Polaroids P1 and P2 are placed with their axis perpendicular to each other. Unpolarised light of intensity I0 is incident on P1. A third polaroid P3 is kept in between P1 and P2 such that its axis makes an angle 45∘ with that of P1. The intensity of transmitted light through P2 is :-