character: Dr. Smith
topic: The Speed of Light in Different Mediums
grade: 11
subject: Physics
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character: Professor Thompson
topic: Refraction and the Speed of Light
grade: 11
subject: Physics
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character: Ms. Johnson
topic: The Effects of Density on Light Speed
grade: 11
subject: Physics
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character: Dr. Lee
topic: Light Speed: Vacuum vs. Glass
grade: 11
subject: Physics
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