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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 source of light is placed at a distance of 50 cm from a photocell and the stopping potential is found to be \[{{V}_{0}}\]. If the distance between the light source and photocell is made 25 cm, the new stopping potential will be

    A) \[2{{V}_{0}}\]  

    B) \[{{V}_{0}}/2\]

    C) \[{{V}_{0}}\]   

    D) \[4{{V}_{0}}\]

    Correct Answer: C

    Solution :

    [c] Since, stopping potential is independent of distance hence new stopping potential will remain unchanged i.e., new stopping potential\[={{V}_{0}}.\]


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