In a room with a single light source on the ceiling, Zhanna stands close to the wall facing Makena, who is directly opposite her. There is a tall bookshelf between them that does not reach the ceiling. Assuming the light is bright enough to illuminate the whole room but is blocked by the bookshelf, would Makena be able to see Zhanna's face, and would Zhanna be able to see the top of the bookshelf? Provide a very brief response.
Makena would not be able to see Zhanna's face because the bookshelf would obstruct her line of sight. The light from the ceiling would be blocked by the height of the bookshelf, creating a shadow on the side of the bookshelf facing Makena. However, Zhanna would be able to see the top of the bookshelf because she is standing on the same side as the light source, and the light would illuminate the top of the bookshelf without obstruction.