Physics · Wave Optics

Two Polaroids P1 and P2 are placed with their pass axes 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 i ts axis makes an angle of 45° with that of P1. The intensity of transmitted light through P2 is:

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I08

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