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Physics
Classical Physics
Optics
Reflection of a wave by a rigid boundary
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[QUOTE="Kaushik, post: 6296942, member: 664203"] I found this on the internet. [URL='https://www.physicsclassroom.com/class/waves/Lesson-3/Boundary-Behavior']Source[/URL] How does the crest reach the end of the medium? As the other end is fixed there is no way the crest can reach the interface. Isn't it? My book gave an alternative explanation. It stated that as there is no net displacement at the interface, we can use the principle of superposition to find the phase of the reflected wave (The reflected phase should be 180 more than the incident phase). But my question isn't both the same wave? We use the principle of superposition when there are two different waves. Here, the same wave is just being reflected. Please correct me [/QUOTE]
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Physics
Classical Physics
Optics
Reflection of a wave by a rigid boundary
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