Learning Goal: To understand polarization of light and how to use Malus\'s law t

Question

Learning Goal: To understand polarization of light and how to use Malus's law to calculate the intensity of a beam of light the orientation of the transmission axis of the polarizer: I = 1/2 I_0. One way to produce a beam of polarized light with intensity I and polarization angle theta would be to pass unpolarized light with intensity I_0 through a polarizer whose transmission axis is oriented such that theta_TA = theta. How large must I_0 be if the transmitted light is to have intensity I?(Figure_3) Express your answer as a decimal number times the symbol I. For example, if I_0 = (1/4)I, enter 0.25 * This question will be shown after you complete previous question(s).

Explanation / Answer

As transmitted light has intensity by malus law

I = Io cos^2(theta)

Here theta between polarizer axis and orientation of light is same so

Theta = 0

Then

Io = I

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