Parallel light rays cross interfaces from medium 1 into medium 2 and then into medium 3 as shown in Fig. 23–51. What can we say about the relative sizes of the indices of refraction of these media? (а) п, > па > nз. (b) n3 > n2 > N1 . (с) п, > пз (d) п, > пз > п2. (е) п, > п, > Пз. (f) None of the above. > n1 - 1 2 FIGURE 23-51 MisConceptual Question 5. 3

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