Question

Unpolarized light with intensity 75 W/m² falls on a sequence of 2 polarizers. The first polarizer makes an angle of +30^◦ with respect to the positive x-axis, and the second polarizer makes an angle of 52^◦ with respect to the same axis. What is the intensity of light passing through the pair of polarizers?

Answer 1

Given Intensity of light (Io) - 75 W/m² When umpolasized light is passed through first polariser its intensity reduced to making the light polarized half and so = І. 2 Now When through another polarized light passed polanier then I, Cos² (52-30) 1, I, cos²22° Io x (0.9277² 75 x 0.859 - 32-23 W/m²