A 92-nm-thick coating of MgF2 (n=1.39) on glass acts as an antireflection coating for light with a wavelength of 510 nm. Without the coating, the intensity of reflected light is I=C(a2) , where a is the amplitude of the reflected light wave and C is an unknown proportionality constant. Let I' be the intensity of light reflected from the coated glass at wavelength λ . Find an expression for the ratio I'/I as a function of the wavelength λ where λ is in nm. This ratio is the reflection intensity from the coated glass relative to the reflection intensity from uncoated glass. A ratio less than 1 indicates that the coating is reducing the reflection intensity. 题目大致上看得懂 可是抓不到方向 最主要是不知道Ｉ和λ之间的相关性要如何去转换 最上面那一大段是主问题 第二段是其中的第一小题 麻烦会的人提示一下该从哪里开始下手 谢谢：Ｐ --

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