An unpolarized beam of light is incident on a group of three polarizing sheets that are lined up so that the characteristic direction of each is rotated by 45 degrees clockwise with respect to the preceding sheet. What is the fraction of the incident intensity Io that is transmitted?(adsbygoogle = window.adsbygoogle || []).push({});

a. zero

b. Io/2

c. Io/4

d. Io/6

E. Io/8

My thoughts were that if you take the cosine of the angle 45 and square it as shown in the intensity equation you get .5, so therefore the answer would be Io/2, but I am not quite sure if this theory is right.

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Incident Intensity of light transmitted

**Physics Forums | Science Articles, Homework Help, Discussion**