A horizontal 6.0 mW laser beam that is vertically polarized is incident on a polarizing sheet...

Question:

A horizontal 6.0 mW laser beam that is vertically polarized is incident on a polarizing sheet that is oriented with its transmission axis vertical. Behind the first sheet is a second sheet that is oriented so that its transmission axis makes an angle of 24 degrees with respect to vertical. What is the power of the beam transmitted through the second sheet?

Polarization of Light:

When the vibration of a transverse wave (electric field or magnetic field in case of light) is fixed, it is linearly polarized. When the polarized light is entering a polarizer, the intensity of the light passing through the polarizer depends on the angle of the polarization axes.

Answer and Explanation:

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The first polarizing sheet has the same orientation with the incident light, so there is no loss of power after passing through the first sheet.

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Polarization of Light & Malus's Law

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Chapter 15 / Lesson 6
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