| 词汇 | refraction |
| 释义 | refraction noun [ U ] physics specialized uk/rɪˈfræk.ʃən/ us/rɪˈfræk.ʃən/ 折射 the fact of light or sound being caused to change direction or to separate when it travels through water, glass, etc. absolute index of refraction 绝对折射率 a calculation of the relationship between the speed of light moving through a medium (= substance) and the speed of light in a vacuum (= an area with no matter in it) So how do you calculate the absolute index of refraction? Could you explain the difference between the absolute index of refraction and the relative index of refraction? In this equation, n = the absolute index of refraction. angle of refraction 折射角 the angle that a beam of light or other energy that is refracted by a surface makes with a line vertical to that surface White light splits into a colour spectrum during refraction because each constituent wavelength's angle of refraction is different. The letter 'r' here stands for the angle of refraction. The angle of refraction can only be calculated for radiation that passes through a medium rather than radiation that is reflected off a surface. Is the angle of refraction greater or less than the angle of incidence? |
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