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29 Building contractors often install double-glazed windows to E prevent thermal energy (heat) from entering or exiting a = building. In addition to being effective insulators, such of . = windows present interesting optical effects. ] Pe 5 Ys : x glass In the figure, a double-glazed window consists of two " identical panes of glass (n, = 1.40), each y, = 62.0 mm ~ thick, separated by an air gap of y, = 49.6 mm. y, * air a Use n, = 1.00 for the index of refraction of air. ~ ~ y. \" . glass : ~ | \\ Me a ~ ~ \\ If light incident on the glass makes an angle of = 40.00 with respect to the glass, find the shift in path Ax as the light Ars Po mm enters the room