character: Alex
topic: Wave Frequency and Wavelength Relationship
grade: 11
subject: Physics
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character: Teacher
topic: Understanding the Electromagnetic Spectrum
grade: 11
subject: Physics
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character: Alex
topic: Calculating Wave Speed from Frequency and Wavelength
grade: 11
subject: Physics
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character: Student
topic: Exploring Sound Waves and Their Properties
grade: 11
subject: Physics
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