Copyright

Three polarizing filters are stacked with the polarizing axes of the second and third at 35...

Question:

Three polarizing filters are stacked with the polarizing axes of the second and third at {eq}35^\circ {/eq} and {eq}80^\circ {/eq} (both front/clockwise), with respect to the first. If light of intensity {eq}I_0 {/eq} is emerging from the first polarizer, find the intensity of light emerging from each of the other two filters as a fraction of {eq}I_0 {/eq}.

Malus Law:

When a plain polarized light passes though a polarizer, the intensity of emerging light from the polarizer depends on the angle between the polarization axis of light and pass axis of the polarizer, which is given by Malus Law as:

  • {eq}I \ = I_o \times \cos^2 \theta {/eq}

where

I represents intensity of transmitted light

{eq}I_o {/eq} represents intensity of incident light on the polarizer

{eq}\theta {/eq} represents angle between the polarization axis of incident light and pass axis of the polarizer

Answer and Explanation:

We are given three polarizers, with following information:

  • Intensity of light emerging from polarizer-1 = {eq}I_0 {/eq}
  • Angle between polaization...

See full answer below.

Become a Study.com member to unlock this answer! Create your account

View this answer

Learn more about this topic:

Polarization of Light & Malus's Law

from UExcel Physics: Study Guide & Test Prep

Chapter 15 / Lesson 6
18K

Related to this Question

Explore our homework questions and answer library