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Assignment 4

# Assignment 4 - PHYS 434 Optics Problem set#4 1 Imagine...

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PHYS 434 Optics Problem set #4 1. Imagine linearly polarized light passing through three linear polarizers as discussed in class. To be explicit, the first and third polarizers are crossed (relative orientation of 90 so no light passes through) and the intermediate one is at an angle θ . Find a formula for the intensity of light passing through the three polarizers as a function of θ . 2. In this question you will estimate the resolution of the human eye. The near point of the eye is the nearest point at which the eye can focus on an object. This distance is assumed to be 25 cm for the average eye. (a) If the resolution of the eye is diffraction limited what is the separation of two points at the near point that can be just resolved. (b) The figure shows size of the pupil versus light illumination. Is the resolution better in strong or weak lighting? How much does the resolution change. (c) The eye is filled with a liquid (called aqueous humour) that has n = 1 . 33, by how

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