Practice Quiz

Praxis II General Science

Category - Physics

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Polarized sunglasses are able to block a significant amount of sunlight that reaches your eyes. This is done by polarizing the light coming through the lenses, which means that the light is:
  1. Given a magnetic charge.
  2. Given an ionic charge.
  3. Aligned to oscillate in one direction.
  4. Aligned such that the light can no longer pass through the lens.
  5. Given more energy.
Explanation
Answer: C - Polarization of light in the lens causes the light to only oscillate in one direction. Then, when the light is passed through a second, non-aligned disk, a specific amount of light can be removed from the spectrum.
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