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BVP Medical BVP Medical Solved Paper-2000

  • question_answer
    The value of the stopping potential when the metals with work function 0.6 eV is illuminated with the light of 2 eV :

    A)  2.6 V                                    

    B)  3.6 V

    C)  0.8 V                                    

    D)  1.4 V

    Correct Answer: D

    Solution :

                                                         Given, \[hv=2eV,{{W}_{0}}+eV\] using the relation \[hv={{W}_{0}}+eV\] So,      \[eV=hv-{{W}_{0}}\] \[eV=2-0.6=1.4eV\] So,       \[V=1.4V\] 


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