RAJASTHAN ­ PET Rajasthan PET Solved Paper-2002

  • question_answer
    The retarding potential for having zero photo-electron current

    A)  is proportional to the wavelength of incident light

    B)  increases uniformly with the increase in the wavelength of incident light

    C)  is proportional to the frequency of incident light

    D)  increases uniformly with the increase in the frequency of incident light wave

    Correct Answer: D

    Solution :

     Higher the frequency of incident light, higher will be the stopping potential. Thus, the value of electric current will become zero.


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