Ametalsurfaceilluminatedby.×Hzlightemitselectronswhosemaximumenergyis.eV.Thesamesurfaceilluminatedby.×Hzlightemitselectronswhosemaximumenergyis.eV.Theworkfunctionofthemetalis(B)A.eVB.eVC.eVD.eV

  尔雅 智慧树 mooc


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