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    kenika's Avatar
    kenika Posts: 1, Reputation: 1
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    #1

    Jan 9, 2011, 04:42 AM
    Quantum Physics
    The energy required to remove an electron from sodium is 2.3eV.does sodium show photoelectric effect for yellow?what is wavelength for photoelectric emission from sodium?
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    Jan 9, 2011, 06:39 AM

    Use the formula E = hf

    Where E is the energy in joules, h Planck's constant and f the frequency of the emitted light. Do you know the frequency of yellow light? You'll need to know this to answer the question.
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