Final answer:
Projecting an image means that the image can be shown or displayed on a surface such as a screen or the retina of an eye. This is possible when light rays from one point on an object cross at the location of the image, allowing the rays to physically go through the image and be seen on the surface.
Step-by-step explanation:
When we say 'projecting an image', we mean that the image can be shown or displayed on a surface such as a screen, film, or the retina of an eye. A projected image is formed when light rays from one point on an object actually cross at the location of the image. This means that the rays physically go through the image and can be seen on a surface, allowing us to view the image.