character: Mr. Smith
topic: Practical Applications of Refraction in Lenses
grade: 9
subject: Physics
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character: Mr. Johnson
topic: Understanding Optical Lenses and Refraction
grade: 9
subject: Physics
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character: Ms. Davis
topic: Real-Life Uses of Lenses and Refraction Principles
grade: 9
subject: Physics
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character: Dr. Brown
topic: The Science Behind Lenses: Refraction in Everyday Life
grade: 9
subject: Physics
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