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28 November, 05:40

What happens to a wave when reflected off a node

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  1. 28 November, 09:40
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    A light wave travelling in air that is reflected by a glass barrier will undergo a 180° phase change, while light travelling in glass will not undergo a phase change if it is reflected by a boundary with air ... The phase changes that take place upon reflection play an important part in thin film interference.
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