When a certain gas under a pressure of 5.00 3 106 Pa at 25.08C is allowed to expand to 3.00 times its original volume, its final pressure is 1.07 3 106 Pa. What is its final temperature? (a) 450 K (b) 233 K (c) 212 K (d) 191 K (e) 115 K
Week 15 Dependence of indec of refraction on wavelength isdispersion n=c/(f*wavelength) When light strikes prism, amt ra is bent from original dir Is called angle of deviation ○ Since all colors have diff angles of deviation, spread into spectrum (red deviates least) Rainbow Drop of water undergoes refraction and reflections Refraction at front of drop, then refracted again as returns to front of surface and moves into air ○ ○ Angle btwn white and violet is 40 deg ○ Angle btwn white and red is 42 deg ○ Drop lower in sky directs violet to observer Others are btwn red and violet Huygen's principle- assumes light is form of wave motion
