White light is incident on a block of glass that has index of refraction n = 1.816 for violet light and n = 1.80010r red light.The thickness of the block is L = 24 cm. If the angle of incidence is 39 degrees, what is the distance x between the violet and red rays when they emerge from the glass? Take the index of refraction of air to be 1.00. 0 Answer: 0.01 X cm Check In the figure, a beam of initially unpolarized light is sent through a series of three polarizing filters. In the figure, 01 = 02 = 03 = 32.7 degrees. What fraction of the initial intensity is transmitted through the third polarizer? Hint: look closely at the diagram and be careful with the angles. XWhen a beam of unpolarized light is sent through two polarizing sheets, the transmitted intensityr is 255 percent of the initial intensity. What is the angle between the polarizing directions of the two sheets? Answer: 1.04 X rad 0 Check When a beam of unpolarlzed light is sent through two polarizing sheets, the transmitted intensity is 25.5 percent of the initial intensity. What l5 the angle between the polarizing directions of the two sheets? Answer: 1.04 X rad 0 Check Three polarizing sheets are stacked on top of each other. Their polarization directions (relative to an arbitrary reference line) are 0, 45, and 90 degrees. (a) Consider the fraction of initially unpolarized incident light that would be transmitted through the stack. Does the order in which they are stacked affect your answer? Explain briefly. (b) Now suppose the first and third sheets are fixed in place, with polarization directions of 0 and 90 degrees respectively; the middle sheet can be rotated. How does the intensity of transmitted light vary qualitatively as you rotate the middle sheet from 0 to 90 degrees? 1 A v B I Approximate word count: 0