Three polarized are placed such that, the first and the third are mutually perpendicular to each other. Unpolarized light of intensity Io is incident or first polarized. The intensity of light emerging from the third polaroid’s is (1/16) of the intensity of incident light. Find the angle between first the angle between first and second polaroid’s.

Three polarized are placed such that, the first and the third are mutually perpendicular to each other. Unpolarized light of intensity Io is incident or first polarized. The intensity of light emerging from the third polaroid’s is (1/16) of the intensity of incident light. Find the angle between first the angle between first and second polaroid’s.