Final answer:
The ghost shadow appears higher than the real shadow due to the angle of the light source. The light source shining from above causes the shadow to be cast at a downward angle.
Step-by-step explanation:
The ghost shadow appears as a slightly higher level than the real shadow because of the angle of the light source. When light hits an object, it creates a shadow behind it. However, the ghost shadow appears higher because the light source is positioned above the object, causing the shadow to be cast at a downward angle.
For example, imagine a person standing under a streetlight. The person's body blocks the light from above, creating a shadow on the ground. The person's head, however, is slightly higher than the rest of their body, so the shadow of the head appears higher compared to the rest of the shadow.