Understanding Refraction and Ray Diagrams

The video tutorial explains how ray diagrams can be used to describe the refraction of waves at the boundary between two different media, such as air and glass. It covers the behavior of waves traveling at 90 degrees to the boundary, where no change in direction occurs, and waves traveling at an angle, where refraction occurs. The tutorial also discusses the concepts of angle of incidence, angle of refraction, critical angle, and total internal reflection, using examples like a semicircular glass block to illustrate these phenomena.

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