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    It says in the Edexcel physics textbook that when you diffract a monochromatic source of light, you get an interference pattern which can be interpreted as a standing wave. Apparently the nodes are the light regions and the antinodes are the dark regions.

    However my physics teacher said that it was wrong. But the book consistently repeats this statement. How can I trust a textbook with fundamental errors in if that's the case?
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    It says interpreted. I doesn't mean it is a standing wave. Really it is lots of waves interfering, some in phase and out of phase. The pattern shows where they are interfering.
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    yeah, when it says it can be interpreted it means you can imagine it as such. but not literally to be taken as that
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    (Original post by BlobBlob69)
    yeah, when it says it can be interpreted it means you can imagine it as such. but not literally to be taken as that
    Well the textbooks these days are misleading (for A levels).

    Which is quite annoying.
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    no, stupid textbook.

    the incident wave must be reflected to produce a reflected wave of exact same frequency and amplitude but in the opposite direction; that does not occur in interference.
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