End of Chapter 23 In addition to the notes on the powerpoint:23.3 Lenses- Anything that comes in parallel goes through the focal point - A magnifying lens is a double convex lens know how to draw the diagram- A double concave lens and a convex mirror always create virtual image- Telescopes, binoculars, and microscopes always use a double convex lens back to back- The radii of curvature don’t have to be the same – if they are not the same, the focal lengths aren’t equalChapter 2424.1 Young’s double slit experiment- When the slits are in phase, the crests hit at the same time and superimpose- Where there is a crest and tough, they are at a minimum and a dark spot occurs there- If there is a half wavelength, then they are out of phase and there is a minimum in that area24.2 Thin-Film Interference- Binoculars have a blue coating that cut down on reflection24.3 Diffraction- If you looked at a round object with a square pupil, the object would not look round- Single slits are like the pupil of each eye- The diffraction pattern is very different from the double slit pattern- Concentric circles with the middle being a bright round center- Almost all the energy is concentrated in the middle24.4 Polarization- When you align the polarized material at right angles, no light is transmitted- This is why we have polarized
View Full Document
Unlocking...