character: Dr. Smith
topic: Refraction and Reflection of Electromagnetic Waves
grade: 11
subject: Physics
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character: Professor Johnson
topic: Wave Behavior in Different Mediums
grade: 11
subject: Physics
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character: Ms. Lee
topic: Applications of Reflection in Technology
grade: 11
subject: Physics
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character: Mr. Brown
topic: Understanding Light Waves and Their Properties
grade: 11
subject: Physics
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