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    Question

    A photon of energy 3 eV collides with a metal having a

    work function of 2 eV. Kinetic energy of the emitted electron is:
    A 1 eV Correct Answer Incorrect Answer
    B 5 eV Correct Answer Incorrect Answer
    C 2 eV Correct Answer Incorrect Answer
    D 3 eV Correct Answer Incorrect Answer

    Solution

    KE= hν − ϕ = 3-2 = 1 eV

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