character: Wave Behavior in Physics
topic: Light and Sound
grade: 9
subject: Physics
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character: Acoustics
topic: Applications of Sound Waves in Architecture
grade: 9
subject: Physics
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character: Optics
topic: Applications of Light Waves in Technology
grade: 9
subject: Physics
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character: Sonar Technology
topic: Applications of Sound Waves in Navigation
grade: 9
subject: Physics
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