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2 cards from this section. Quick, good the night before a test.
Define total internal reflection.
Think about what happens to light when it hits a boundary.
What is the critical angle?
Consider the relationship between the angles in refraction.
What occurs during total internal reflection?
Recall the definition of total internal reflection.
True or False: The critical angle is the angle at which light begins to refract.
Think about the relationship between incidence and reflection.
Illustrate the path of light while moving from water (n=1.33) to air (n=1), and determine the critical angle for this scenario.
Apply Snell's Law correctly for the transition between the two media.
Analyze a scenario where light travels from diamond (n ≈ 2.42) to air (n=1). Calculate the critical angle and discuss the implications for sparkling diamonds.
Link the critical angle with how materials like diamond are cut for minimum light escape.
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