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RAJASTHAN PMT Rajasthan - PMT Solved Paper-1995

  • question_answer
    In X-ray spectra wavelength of \[{{k}_{\alpha }}\] line is \[\lambda ,\]depends upon atomic number of target Z as:

    A) \[\lambda \propto {{Z}^{2}}\]                                   

    B)        \[\lambda \propto {{(Z-1)}^{2}}\]                            

    C)        \[\lambda \propto \frac{1}{(Z-1)}\]                        

    D)        \[\lambda \propto \frac{1}{{{(Z-1)}^{2}}}\]

    Correct Answer: C

    Solution :

    According to Moseleys law for X-ray \[\lambda \propto \frac{1}{(Z-1)}\]


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