Optics:Critical Angle and Total Internal Reflection

This lesson discusses what happens when light goes from a slower medium to a faster one, this is called total and internal reflection. This lesson will show a diagram to show what happens when light speeds... This lesson discusses what happens when light goes from a slower medium to a faster one, this is called total and internal reflection. This lesson will show a diagram to show what happens when light speeds up and goes through an interface and what happens to the angle. Normal incidence will be shown and explained as well.
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