character: Dr. Emily Carter
topic: Applications of Ultrasonic Waves in Technology
grade: 11
subject: Physics
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character: Dr. John Smith
topic: Ultrasonics in Medical Imaging
grade: 11
subject: Physics
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character: Professor Anna Lin
topic: Industrial Applications of Ultrasonic Testing
grade: 11
subject: Physics
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character: Dr. Raj Patel
topic: Ultrasonic Waves in Non-Destructive Testing
grade: 11
subject: Physics
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