Two polarizers have polarizing axes that make an angle of 30˚ to each other. Unpolarized light of intensity I₁ is incident on the first polarizer so that light of intensity I₂ emerges from the second polarizer, as shown below.

The cosine of 30˚ is \(\frac{{\sqrt 3 }}{2}\). What is the ratio \(\frac{{{I_1}}}{{{I_2}}}\)?

1. \(\frac{3}{8}\)
2. \(\frac{4}{3}\)
3. \(\frac{4}{{\sqrt 3 }}\)
4. \(\frac{8}{3}\)

D