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JEE Main & Advanced Physics Photo Electric Effect, X- Rays & Matter Waves Question Bank Self Evaluation Test - Dual Nature of Radiation and Matter

  • question_answer
    A metal surface is illuminated by a light of given intensity and frequency to cause photoemission. If the intensity of illumination is reduced to one-fourth of its original value, then the maximum KE, of emitted photoelectrons will become

    A) (1/16)th of original value

    B) unchanged

    C) twice the original value               

    D) four times the original value

    Correct Answer: B

    Solution :

    [b] Maximum KE depends on the frequency of incident radiation, not on intensity.


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