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

  • question_answer
    The wavelength of the most energetic X?ray emitted when a metal target is bombarded by 100 KeV  electrons is approximately                                                             [MP PET 1996]

    A)            12 Å                                         

    B)            4

    C)            0.31 Å                                      

    D)            0.124 Å

    Correct Answer: D

    Solution :

               \[\,{{\lambda }_{\min }}=\frac{12375}{100\times {{10}^{3}}}\,{\AA}=0.124\,{\AA}\]


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