In Fig. 33-62, a light ray in air is incident at angle u1 on a block of transparent
Chapter 33, Problem 66(choose chapter or problem)
In Fig. 33-62, a light ray in air is incident at angle u1 on a block of transparent plastic with an index of refraction of 1.56. The dimensions indicated are H 2.00 cm and W 3.00 cm. The light passes through the block to one of its sides and there undergoes reflection (inside the block) and possibly refraction (out into the air). This is the point of first reflection. The reflected light then passes through the block to another of its sidesa point of second reflection. If u1 40, on which side is the point of (a) first reflection and (b) second reflection? If there is refraction at the point of (c) first reflection and (d) second reflection, give the angle of refraction; if not, answer none. If u1 70, on which side is the point of (e) first reflection and (f) second reflection? If there is refraction at the point of (g) first reflection and (h) second reflection, give the angle of refraction; if not, answer none. 6
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