Solve the following problem given below:
Problem: Light passes through a polarizer set at 0°; the output intensity is 1870 W/m2.
Part I: Next the light passes through a polarizer oriented at 120°. Calculate the intensity of the light after passing through this polarizer.
Part II: Now we insert a polarizer (set at 45 °) between the other two polarizers. Calculate the light intensity after passing through all polarizers.
Please show all work so I can completely understand all concepts!