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    Name:  helohe.png
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    hey I really do not understand this..at all

    would someone mind explaining?

    thanks
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    Have you been taught phasors?
    It's just a upmarket way of thinking about path difference and wavelength.
    I wouldn't worry about learning a new set of terminology that's not going to be in the exam.
    You should be able to work out what happens when the slit spacing is reduced tho'.
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    This is all to do with diffraction, quite a complicated topic at AS.
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    Study Helper
    2nd and 3rd boxes are correct.
 
 
 
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