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...

. 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)