The energy of light varies across the spectrum (blue light is more energetic than red) but only a certain amount of energy is needed to knock an electron free.
光谱中光的能量是不同的(蓝光比红光更具能量)，但是只需一种确定的能量来碰触电子使其脱离。
2
The energyspectrum and the ground state magnetization of electron are calculated and analyzed, and are compared with the situation in uniform magnetic filed.
计算和分析了电子的能谱和基态磁化强度随周期磁场的各个参数的变化，并与均匀磁场中的情况进行了比较。
3
The surface topography and composition of normal coating and spot were investigated by scanning electron microscope and energy dispersion spectrum.