character: Mr. Johnson
topic: Understanding Optical Lenses and Refraction
grade: 9
subject: Physics
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character: Ms. Smith
topic: Applications of Convex and Concave Lenses
grade: 9
subject: Physics
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character: Dr. Lee
topic: The Science of Light and Refraction
grade: 9
subject: Physics
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character: Mr. Adams
topic: Exploring the Behavior of Light through Different Media
grade: 9
subject: Physics
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