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光电效应现象的理解和应用是高二物理学习的一个重点,试题类型以选择题为主,且常常与光子说结合在一起.对光电效应的理解同学们应注意以下几个问题.一、对光电效应规律的理解例1下列对光电效应的解释正确的是().A.金属内的每个电子可以吸收一个或一个以上的光子,当它积累的动能足够大时,就能逸出金属B.如果入射光子的能量小于金属表
The understanding and application of the phenomenon of photoelectric effect is one of the focuses of physics study of sophomore year. The types of questions are mainly multiple-choice questions, and are often combined with photon theory.On the understanding of photoelectric effect, students should pay attention to the following questions.One, The following explanation of the photoelectric effect is correct () A. Each metal in the electron can absorb one or more photons, when it accumulates kinetic energy is large enough to escape the metal B If the incident photon energy is less than the metal watch