12th Class Physics Photo Electric Effect, X- Rays & Matter Waves Question Bank Dual Nature of Radiation and Matter Conceptual Problems

  • question_answer
    How does the maximum kinetic energy of electrons emitted vary with the work function of the metal?          

    Answer:

                    The maximum kinetic energy of emitted electrons,\[{{K}_{\max }}=\frac{1}{2}m\upsilon _{\max }^{2}=hv-{{W}_{0}}\] Clearly, the larger the work function of the metal, lesser is the maximum K.E. of the photoelectrons.


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