JEE Advanced 2013 Paper 2 Physics Q18

Physics · Ray Optics: Refraction & Lenses

Problem

A right angled prism of refractive index μ1\mu_1 is placed in a rectangular block of refractive index μ2\mu_2, which is surrounded by a medium of refractive index μ3\mu_3, as shown in the figure. A ray of light ee enters the rectangular block at normal incidence. Depending upon the relationships between μ1\mu_1, μ2\mu_2 and μ3\mu_3, it takes one of the four possible paths efef, egeg, eheh or eiei. Match the paths in List I with conditions of refractive indices in List II and select the correct answer using the codes given below the lists. Column I — P: e→fe\to f; Q: e→ge\to g; R: e→he\to h; S: e→ie\to i Column Ii — 1: μ1>2 μ2\mu_1>\sqrt{2}\,\mu_2; 2: μ2>μ1\mu_2>\mu_1 and μ2>μ3\mu_2>\mu_3; 3: μ1=μ2\mu_1=\mu_2; 4: μ2<μ1<2 μ2\mu_2<\mu_1<\sqrt{2}\,\mu_2 and μ2>μ3\mu_2>\mu_3

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