character: Ms. Stevens
topic: Lens Types and Their Uses
grade: 9
subject: Physics
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character: Mr. Thompson
topic: Optical Principles of Lenses
grade: 9
subject: Physics
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character: Dr. Hall
topic: Applications of Convex and Concave Lenses
grade: 9
subject: Physics
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character: Ms. Rodriguez
topic: Refraction and Focal Length of Lenses
grade: 9
subject: Physics
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