Q33 of 61 Page 1

Study the following four experimental set-ups I, II, III and IV for the experiment, "To trace the path of a ray of light through a rectangular glass slab". Which of the marked set-ups is lik give best results (P1 and P2 are the positions of pins fixed on the incident ray)?

The correct answer is: option D

The path of ray should be properly inclined obiquely on the surface of the slab. This is best in figure IV:


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