An unpolarized light of average intensity $I$ is passed through a polarizer. Find the amplitude of electric field of light coming out. (Symbols have their usual meaning)

  • A
    $\sqrt{\frac{2I}{c\epsilon_0}}$
  • B
    $\sqrt{\frac{I}{c\epsilon_0}}$
  • C
    $\sqrt{\frac{4I}{c\epsilon_0}}$
  • D
    $\sqrt{\frac{4I}{\sqrt{3}c\epsilon_0}}$

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