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

  • question_answer
    Kinetic energy of emitted cathode rays is dependent on [CPMT 1996]

    A)            Only voltage                         

    B)            Only work function

    C)            Both (a) and (b)

    D)            It does not depend upon any physical quantity

    Correct Answer: C

    Solution :

               Higher the voltage, higher is the KE.  Higher the work function, smaller is the KE.


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