character: Mr. Chen
topic: Refraction and Snell's Law
grade: 11
subject: Physics
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character: Mr. Chen
topic: Understanding Light Waves
grade: 11
subject: Physics
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character: Mr. Chen
topic: Applications of Snell's Law in Optics
grade: 11
subject: Physics
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character: Mr. Chen
topic: Critical Angle and Total Internal Reflection
grade: 11
subject: Physics
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