In a room with a single window, Kofi and Yuna are standing with their backs to the window. If the sun is setting directly in front of the window, what can Kofi and Yuna see on the wall opposite to the window?

Provide a very brief response.
Kofi and Yuna will see their own shadows on the wall opposite to the window. Since the sun is setting directly in front of the window, the light coming through the window is projecting from behind them. This light will be blocked by their bodies, causing their shadows to appear on the wall in front of them. The size and clarity of the shadows will depend on the angle of the sunlight and the distance of Kofi and Yuna from the window and the wall.