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

  • question_answer
    The correct graph between the maximum energy of a photoelectron and the inverse of wavelength of the incident radiation is given by the curve

    A)            A

    B)            B

    C)            C

    D)            None of the above

    Correct Answer: A

    Solution :

               \[{{K}_{\max }}=h\nu -h{{\nu }_{0}}=\frac{hc}{\lambda }-\frac{hc}{{{\lambda }_{0}}}\] i.e. graph between \[{{K}_{\max }}\] and \[\frac{1}{\lambda }\] will be straight line having slope (hc) and intercept \[\frac{hc}{{{\lambda }_{0}}}\] on ? KE axis.


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