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Thread: Riddle # 111 (Solved By braveusman)

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    grin Riddle # 111 (Solved By braveusman)

    A light of wavelenghth 5000 A is incident on a metal whose work function is 2eV.The maximum K.E of the photoelectron will be????
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    سوچ میں ہوں کہ اب تجھ کو پکاروں کیسے

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    Default Re: Riddle # 111

    E(eV)=1242/500=2.48 eV(KE)
    max=hv-0=2.48-2
    =0.48 eV

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    Default Re: Riddle # 111

    rite
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    Default Re: Riddle # 111 (Solved By braveusman)

    Hmmm

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