什么是金属的逸出功,多年来中学物理教材一直说法不一.请看:1980年2月第1版《全日制十年制学校高中课本(试用本)物理下册》(人民教育出版社)的叙述是:“电子吸收光子的能量后,动能立刻就增加了,不需要积累能量的过程.如果电子的动能足够大,能够克服内部原子对它的引力,就可以离 What is the metal work function? For many years, the physics textbooks for secondary schools have been inconsistent. Please read: First Edition, February 1980, Full-time, Ten-year School, High School Textbook (Trial), Physics Book (People’s Education Press) The narrative is: "After electrons absorb the energy of a photon, the kinetic energy increases immediately and there is no need to accumulate energy. If the kinetic energy of the electron is large enough to overcome the internal atom’s attraction to it, it can be separated.