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3 cards from this section. Quick, good the night before a test.
What is total internal reflection?
Think about light reflecting rather than passing through.
What does critical angle refer to?
It's related to how light behaves at surfaces.
What happens to light when it exceeds the critical angle while moving from a denser to a less dense medium?
Consider what happens when light can’t pass through.
True or False: The critical angle depends on the refractive indices of the two media.
Reflect on how these indices are related.
A fiber optic cable is made of glass with a refractive index of 1.5 and is surrounded by air. Calculate the critical angle and explain how fiber optics use total internal reflection.
Use the formula you've learned!
Design an experiment to demonstrate total internal reflection using everyday materials. What results do you expect?
Think about how you can change angles and observe the outcomes.
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