R0=(n1−n2n1+n2)2R_0 = (\frac{n_1 - n_2}{n_1 + n_2})^2R0=(n1+n2n1−n2)2R=R0+(1−R0)(1−cosθj)2R = R_0 + (1 - R_0)(1 - \cos{\theta_j})^2R=R0+(1−R0)(1−cosθj)2actual is Fresnel Equation
