T = \frac{n_{2}}{n_{1}} \frac{E_{r 0}^{2}}{E_{i 0}^{2}} = \frac{n_{2}}{n_{1}} \frac{I_{r}}{I_{i}} \frac{\cos γ}{\cos α}

${T = \frac{n_2}{n_1} \frac{E_{r0}^2}{E_{i0}^2}=\frac{n_2}{n_1} \frac{I_r}{I_i} \frac{ \cos \gamma }{\cos \alpha}}$

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