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

  • question_answer
    What is the stopping potential when the metal with work function 0.6 eV is illuminated with the light of 2 eV [BHU 1998; MH CET 2003]

    A)            2.6 V                                        

    B)            3.6 V

    C)            0.8 V                                        

    D)            1.4 V

    Correct Answer: D

    Solution :

               \[{{V}_{0}}=\frac{(E-{{W}_{0}})}{e}=\frac{(2eV-0.6\,eV)}{e}=1.4V\]


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