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Exploring Light Polarization: Filters & Effects in Physics

Understand the phenomena of polarized and unpolarized light, how polarization filters work, Brewster’s angle, and applications like reducing glare for drivers. Explore the effects of perpendicular and parallel axes on polarizing light filters in this lecture.

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Exploring Light Polarization: Filters & Effects in Physics

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  1. Physics 1161 Lecture 19 Polarization

  2. Unpolarized & Polarized Light

  3. Polarization of Light Unpolarized Electric fields of unpolarized light vibrate in all directions perpendicular to the direction the light travels. A polarizing filter can constrain light to vibrate in only one direction Polarized

  4. Polarizing Filters

  5. Polarization

  6. Polarization

  7. Reflected Horizontally Polarized • Polarization of Reflected Light

  8. Brewster’s Angle • At this angle of incidence all the reflected light is polarized parallel to the surface of the material (non-conducting) • Polarization of Reflected Light

  9. Which pair of glasses is best suited for automobile drivers? (The polarization axes are shown by the straight lines.) • A • B • C

  10. Two Polarizers Perpendicular Axes Parallel Axes

  11. Insert Third Polarizer

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