If the [[Electromagnetic Radiation|Light]] is s-polarized, the [[Reflection Transformations|Reflection]] coefficient is: $\huge \begin{align} R_{s} &= \pa{ \frac{\sin(\theta_{t}- \theta_{i})}{\sin(\theta_{t}+\theta_{i})} }^{2}\\ \end{align}$ If the light is p-polarized: $\huge \begin{align} R_{p} &= \pa{\frac{ \tan(\theta_{t}-\theta_{i}) }{ \tan(\theta_{t}+\theta_{i}) }}^{2} \end{align}$