As you may have learned when studying the properties of thermal energy, building

Question

As you may have learned when studying the properties of thermal energy, building contractors often install double-glazed windows to prevent thermal energy ("heat") from entering/exiting the building. Although effective as insulators, such windows present interesting optical effects. In the figure, a double-glazed window comprises two identical panes of glass (ng = 1.44) separated by an air gap. If the light encounters the glass at an angle of 40.00° with respect to the glass, find the shift in path ?x as the light enters the room. (Use na = 1.00)

As you may have learned when studying the properties of thermal energy, building contractors often install double Although effective as insulators, such windows present interesting optical effects. In the figure, a double-glazed window comprises two identical panes of glass (rg = 1.44) separated by an air gap. If the light encounters the glass at an angle of 40.00 with respect to the glass, find the shift in path ax as the light enters the room. (Use ra = 1.00) 40.00 Number 42.0 mm glass 33.6 mm air 42.0 mm glass O Previous Give Up & View Salulian O Check Answer 0 NextExit Hint

Explanation / Answer

shift in path x = t * [sin(i - r)]/[cos(r)]

=>   shift in path x   = 2 * 42 * [sin(40 - 26.51)]/[cos(26.51)]

                                 =   21.89 mm

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