In a room with a single window on one wall, Jia and Keon are standing at opposite ends. Jia is facing the window and Keon is facing Jia, with their backs to the walls. If the sun is shining directly through the window, who will see the sunlight on the other's face, and what will that indicate about the time of day?
Respond very briefly.
Jia will see the sunlight on Keon's face. Since the sunlight is coming through the window and Jia is facing the window, she is looking in the direction from which the sunlight is entering the room. The sunlight must therefore be hitting Keon's face, which is facing Jia and the window. This also indicates that the sun is on the same side of the house as the window, and since windows are typically designed to face east or west to receive morning or evening sunlight, this suggests that it is either morning or evening depending on the window's orientation. If the window is facing east, it is likely morning, and if it is facing west, it is likely evening. Keon will not see sunlight on Jia's face because Jia's back is to the window, and thus her face would be shadowed from the sunlight coming from behind her.