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JEE Main & Advanced Chemistry Structure of Atom / परमाणु संरचना Question Bank Mock Test - Atomic Structure

  • question_answer
    The work function (\[\phi \]) of some metals is listed below. The number of metals which will show photoelectric effect when light of 300 nm wavelength falls on the metal is Metal   Li   Na  K     Mg  Cu  Ag   Fe   Pt    W \[\phi \](eV) 2.4  2.3  2.2  3.7  4.8  4.3  4.7  6.3  4.75

    Answer:

    4


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