Step 1: Understanding the Concept:
Virtual images are formed when light rays appear to diverge from a point behind the mirror or lens. Unlike real images, they cannot be projected onto a screen.
Step 2: Key Characteristics:
Virtual images are always upright (erect).
They are usually smaller (as in convex mirrors) but can also be larger (as in magnifying lenses).
They appear behind the reflecting/refracting surface.
Step 3: Examples:
Image in a plane mirror $\rightarrow$ always virtual and erect.
Image in a convex mirror $\rightarrow$ always virtual, erect, and diminished.
Step 4: Final Answer:
A virtual image always appears Erect.