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JEE Main & Advanced Physics Photo Electric Effect, X- Rays & Matter Waves Question Bank Graphical Questions

  • question_answer
    The variation of wavelength \[\lambda \] of the \[{{K}_{\alpha }}\] line with atomic number Z of the target is shown by the following curve of

    A)            A

    B)            B

    C)            C

    D)            None of these

    Correct Answer: C

    Solution :

                       For Ka  line \[\nu \propto {{(Z-1)}^{2}}\] Þ \[\lambda \propto \frac{1}{{{(Z-1)}^{2}}}\] i.e. the graph between l and z will be (c).


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