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一、爱因斯坦对光电效应的解释按照经典波动理论——光的电磁说,光是电磁波,强度由光波的振幅决定。当入射光照射到金属上时,金属中的自由电子受变化电场的驱动力作用而做受迫振动,增大入射光的强度,使电子做受迫振动的振幅足够大时,便可挣脱金属束缚而逸出成为光电子,不应存在截止频率;并且光电子的最大初动能应与入射光的强度有关;光能量分布在波面上,且原子面积很小,在单位时间内吸收入射光的能量也很少,即能量的吸收需要积累过程,所以光
First, Einstein’s explanation of the photoelectric effect According to the classical theory of fluctuations - light electromagnetic said that light is electromagnetic waves, the intensity of light waves by the amplitude of the decision. When the incident light shines on the metal, the free electrons in the metal are subjected to the forced vibration by the driving force of the changing electric field, increasing the intensity of the incident light so that when the amplitude of the forced vibration of the electron is large enough, the metal can be released And bound to escape as a photoelectron, there should be no cut-off frequency; and the maximum initial kinetic energy of photoelectrons should be related to the intensity of incident light; light energy distribution in the wave surface, and the atomic area is small, in unit time to absorb incident light energy Few, that is, the absorption of energy requires the accumulation process, so light