character: Mr. Lee
topic: Rainbow Formation and Refraction
grade: 9
subject: Physics
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character: Mr. Chen
topic: Basics of Light and Optics
grade: 9
subject: Physics
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character: Ms. Taylor
topic: Total Internal Reflection in Water
grade: 9
subject: Physics
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character: Dr. Smith
topic: Wave Properties of Light
grade: 9
subject: Physics
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