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NEET Physics Photo Electric Effect, X- Rays & Matter Waves NEET PYQ-Photo Electric Effect,X-Rays

  • question_answer
    In photoelectric emission process from a metal of work function 1.8 eV, the kinetic energy of most energetic electrons is 0.5 eV. The corresponding stopping potential is                                            [AIPMT (S) 2011]

    A)  1.3 V      

    B)  0.5 V

    C)  2.3 V           

    D)  1.8 V

    Correct Answer: B

    Solution :

    Stoping potential = Maximum KE
    \[eV=K{{E}_{\max }}\]
    So, option [b] is correct.


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