35 twoSlit - Review Lecture 34: Optics Problem-solving 1....

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Craig Ogilvie 11 Review Lecture 34: Optics Problem-solving 1. Use principles that are involved to develop a plan refraction across flat interface converging lens to form image what can move to place image at a certain location, etc. 2. Draw ray diagram Find image, characterize image 3. Connect quantities in diagram/problem to lens equation 4. Solve 5. Check for consistency between type of image and numerical solution
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Craig Ogilvie 22 Goals for today / this week § Wave Properties of Light how this constrains/helps communication devices » limits density of optically read-out storage systems » but diffraction provides signals even when not in direct line-of-sight
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Craig Ogilvie 33 Light-Rays § Geometrical abstraction that allows us to work with the direction that an E/B wave travels Instead of drawing E/B fields, can draw “ray” instead
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Craig Ogilvie 44 Sceptics Anonymous § Maxwell’s equations have solutions that are traveling waves of E/B fields § Ideas of frequency seem to account for different colors etc § But optics, refraction does not really seem to need waves § What experimental evidence would convince you that light is indeed a traveling wave? § By yourself, write down ideas (1 min) § Share with neighbor § Class brainstorming
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Craig Ogilvie 55 Interference of Light § Today we will look at two sources of light and how the E- fields/B-fields from both waves add §
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35 twoSlit - Review Lecture 34: Optics Problem-solving 1....

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