Let's assume that solar light reaches a silicon solar cell with an angle of incidence of \(\theta_i=0^o\). For simplicity, let's consider the refractive index of silicon to be \(n_{Si}=3.5\). The refractive index of air is \(n_{air}=1\). What percentage of light would be lost due to reflection at the air-silicon interface? Assume that the solar light is randomly polarized.
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