How is a real image different from a virtual image?

In the study of optics, images are categorized as either real or virtual based on how light rays interact within a system of lenses or mirrors.12

Real Images

A real image is formed when light rays actually converge at a specific point after passing through or reflecting off an optical system. Because the light rays physically meet at the image position, a real image can be projected onto a physical surface, such as a screen or a piece of film. Common examples include the images produced by a camera lens or a motion-picture projector.12

Virtual Images

A virtual image is formed when light rays appear to originate from a point, but do not actually cross at that location. These images occur where diverging rays would intersect if they were traced backward into the optical instrument. Consequently, a virtual image cannot be projected onto a screen and is instead viewed by looking into the system, such as through the eyepiece of a microscope or telescope, or by observing a reflection in a plane mirror.12