character: Mr. Patel
topic: Real-life Applications of Electromagnetic Waves
grade: 9
subject: Physics
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character: Ms. Johnson
topic: Understanding Radio Waves in Communication
grade: 9
subject: Physics
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character: Mr. Smith
topic: Uses of Microwaves in Cooking and Communication
grade: 9
subject: Physics
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character: Dr. Lee
topic: The Role of Infrared Waves in Thermal Imaging
grade: 9
subject: Physics
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