(adsbygoogle = window.adsbygoogle || []).push({}); 1. A 200 mW horizontally polarized laser beam passes through a polarizing filter whose axis is 25 degrees from vertical.

2. Malus's Law

3. Ok, so I will use theta = 65 degrees in the I = I_{0}cos(theta) equation, right? But how do I calculate I_{0}knowing only power and not area?

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# Intensity of light with given power through a polarizer

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