“refractive index”的概念、定义、习题解题方法及翻译-物理辞典

单词	refractive index
释义	refractive index(refractive constant) Symbol n. The absolute refractive index of a medium is the ratio of the speed of electromagnetic radiation in free space to the speed of the radiation in that medium. As the refractive index varies with wavelength, the wavelength should be specified. It is usually given for yellow light (sodium D-lines; wavelength 589.3 nm). The relative refractive index is the ratio of the speed of light in one medium to that in an adjacent medium. See also refraction
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