Some modern optical devices are made with glass whose index of refraction changes with distance from the front surface. FIGURE CP16.84 shows the index of refraction as a function of the distance into a slab of glass of thickness L. The index of refraction increases linearly from n1 at the front surface to n2 at the rear surface. a. Find an expression for the time light takes to travel through this piece of glass. b. Evaluate your expression for a 1.0-cm-thick piece of glass for which n1 = 1.50 and n2 = 1.60.
1/4/15 Intro to Astro Syllabus 1. smartwork homework 0 and 1 due friday 2. smartwork homework 2 due tues, jan 12 3. syllabus stuff a. we are lecture A b. username for web: p20A password: exploreASTRO c. office hours 10 an12 wednesday 4. material to be covered: a. moon phases, planets, light, eclipse 5. log on to triple eee message board and tell about yourself 6. textbook: 21st century astronomy (4th edition) a. has smartwork registration code b. ebook one that expires after a year or lasts forever c. comes with study space webs