character: Dr. Smith
topic: Sound Waves and Their Applications
grade: 11
subject: Physics
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character: Sir Isaac Newton
topic: Historical Contributions to Sound Wave Theory
grade: 11
subject: Physics
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character: Albert Einstein
topic: The Photoelectric Effect and Sound Waves
grade: 11
subject: Physics
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character: Marie Curie
topic: Applications of Sound Waves in Medical Imaging
grade: 11
subject: Physics
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