character: Mr. Lee
topic: Introduction to Fiber Optic Technology
grade: 10
subject: Physics
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character: Ms. Smith
topic: Basics of Light Transmission
grade: 10
subject: Physics
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character: Mr. Johnson
topic: Applications of Fiber Optics in Modern Technology
grade: 10
subject: Physics
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character: Dr. Kim
topic: Principles of Total Internal Reflection
grade: 10
subject: Physics
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