Across
- 6. Light with unsynchronized wave fronts that illuminates objects with an even, white light. (761): Light whose waves are out of step, with their maxima and minima not coinciding.
- 12. A pattern of light and dark bands on a screen, resulting from the constructive and destructive interference of light waves passing through two narrow, closely spaced slits in a barrier.
- 14. States that the product of the index of refraction of a medium and the sine of the angle of incidence equals the product of the index of refraction of a second medium and the sine of the angle of refraction.
- 15. States that the inverse of the focal length of a sperical lens equals the sum of the inverses of the image position and the object position.
- 16. A combination of two or more lenses with different indices of refraction (such as a concave lens with a convex lens) that is used to minimize a chromatic aberration.
- 17. Light from two or more sources, whose additive superposition produces smooth wave fronts. (761): Light whose waves are in step, with coinciding maxima and minima.
- 18. A pattern on a screen of constructive and destructive interference of Huygens’ wavelets
- 19. Light having only one wavelength.
- 20. A phenomenon in which a spectrum of colors is produced due to the constructive and destructive interference of light waves reflected in a thin film.
- 21. A piece of transparent material, such as glass or plastic, that is used to focus light and form an image.
Down
- 1. A device consisting of large numbers of single slits that are quite close together, diffract light, and form a diffraction pattern that is an overlap of single-slit diffraction patterns; can be used to precisely measure light wavelength or to separate light of different wavelengths.
- 2. States that if the central bright spot of one image falls on the first dark ring of the second image, the images are at the limit of resolution.
- 3. A spherical lens defect in which light passing through a lens is focused at different points, causing an object of refraction (such as a concave lens with a convex lens) that is used to minimize a chromatic aberration viewed through a lens to seem to be ringed with color.
- 4. The certain angle of incidence in which the refracted light ray lies along the boundary between two media.
- 5. Occurs when light traveling through an area with a higher index of refraction to an area with a lower index of refraction hits a boundary at an angle that exceeds the critical angle and all light reflects back into the area with the higher index of refraction.
- 7. For a medium, is the ratio of the speed of light in a vacuum to the speed of light in that medium.
- 8. A vision defect in which a person cannot see distant objects clearly because images are focused in front of the retina; can be corrected with a concave lens.
- 9. A vision defect in which a person cannot see close objects clearly because images are focused behind the retina; can be corrected with a convex lens.
- 10. The separation of white light into a spectrum of colors by such means as a glass prism or water droplets in the atmosphere.
- 11. A diverging lens, thinner at its middle than at its edges, that spreads out light rays passing through it when surrounded by material with a lower index of refraction; produces a smaller, virtual, upright image.
- 13. A converging lens, thicker at its center than at its edges, that refracts parallel light rays so the rays meet at a point when surrounded by material with a lower index of refraction; can produce a smaller, inverted, real image, or a larger, upright, virtual image.