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NEET Sample Paper NEET Sample Test Paper-8

  • question_answer
    The maximum kinetic energy of photon electrons emitted from a surface when photons of energy \[6eV\] fall on it is\[4eV\]. The stopping potential is:

    A)  2                                

    B)  4

    C)  6                                

    D)  10

    Correct Answer: B

    Solution :

    From photoelectric equation, \[e{{V}_{0}}={{(K\varepsilon )}_{\max }}=4eV\] \[\Rightarrow \]  \[{{V}_{0}}=4\] Volt (Here \[{{V}_{0}}\] is stopping potential).


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