According to Malus's Law, the transmitted intensity \( I_1 \) after the first polarizer is given by:
\[
I_1 = I_0 \cdot \cos^2(\theta_1)
\]
where \( I_0 \) is the initial intensity (100 W/m²) and \( \theta_1 \) is the angle between the light's polarization
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