character: Dr. Brown
topic: The Role of Refraction in Optical Instruments
grade: 10
subject: Physics
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character: Ms. Green
topic: Understanding Lenses and Refraction
grade: 10
subject: Physics
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character: Mr. Smith
topic: Applications of Refraction in Everyday Life
grade: 10
subject: Physics
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character: Dr. White
topic: How Optical Instruments Utilize Refraction
grade: 10
subject: Physics
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