What is the effect of a polarizer on unpolarized light?

Practice Questions

Q1
What is the effect of a polarizer on unpolarized light?
  1. It increases the intensity
  2. It decreases the intensity
  3. It does not change the intensity
  4. It changes the color

Questions & Step-by-Step Solutions

What is the effect of a polarizer on unpolarized light?
  • Step 1: Understand what unpolarized light is. Unpolarized light consists of waves that vibrate in many different directions.
  • Step 2: Know what a polarizer is. A polarizer is a special filter that only allows light waves of a certain direction to pass through.
  • Step 3: When unpolarized light hits the polarizer, the polarizer only lets through the light waves that are aligned with its orientation.
  • Step 4: As a result, some of the light is blocked, which decreases the overall intensity of the light that comes out of the polarizer.
  • Step 5: The light that passes through the polarizer is now polarized, meaning it vibrates in a single direction.
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