第I卷(选择题共30分) 一、选择.(本厄共10小压,每小瓜3分.共30分。 在每小扭给出的四个选项中,只有一个选项正确. 选对得3分,选错或不答的不得分) 1.某种金属的逸出功为2.3 eV,这意味着 ①在这种金属内部的电子克服原子核引力做 2.3 eV的功即可脱离该金属表面 ②在这种金属表层 Volume I (multiple choice questions totaling 30 points) 1. Select. (This evince has a total of 10 small pressures, 3 points for each small melon, for a total of 30 points. Of the four options given for each small twist, only one option is correct. For a score of 3, the wrong choice or non-answer is not scored.) 1. The work function of a certain metal is 2.3 eV, which means that 1 the electrons inside this metal can overcome the attraction of the atomic nucleus and perform the work of 2.3 eV. Metal surface 2 on this metal surface