How Do Polarized Sunglasses Work?

The video revisits the topic of polarized lenses, correcting previous errors. It explains how light travels as transverse waves and introduces the concept of polarization. The video details vertical and horizontal polarization and how polarized sunglasses work by blocking horizontally polarized light, which is responsible for glare. Misconceptions from the previous video are addressed, clarifying that glare from horizontal surfaces is horizontally polarized, not vertically. The video concludes by highlighting the effectiveness of polarized lenses in reducing glare without darkening the view.

What is the main difference between vertically polarized light and horizontally polarized light?

What happens to unpolarized light when it reflects off a horizontal surface?

Explain how polarized sunglasses work to reduce glare from horizontal surfaces.

How does the orientation of polarized lenses affect the visibility of glare?

Describe the role of the critical angle in the effectiveness of polarized lenses.