In a room with a single window, Sparsh is standing so that his shadow falls directly behind him. Meanwhile, Zahara enters the room and stands facing him. Given that the room is otherwise evenly lit and the sun is the only light source casting shadows, what can Zahara see of Sparsh's shadow?

Provide a very brief response.
Zahara cannot see Sparsh's shadow because it is behind him. Given that they are facing each other, and the shadow is cast by the sunlight coming through the window, Sparsh's body blocks Zahara's line of sight to his shadow. The fact that his shadow falls directly behind him means that the light from the window is shining straight onto Sparsh from the front, relative to Zahara's perspective, casting his shadow on the ground or wall behind him, which is not visible to Zahara from her current position.