How does a convex mirror form a virtual image?

A convex mirror forms a virtual image because its surface causes incident light rays to diverge upon reflection. Unlike a real image, where light rays physically converge at a specific point, a virtual image is formed by the apparent intersection of these diverging rays when traced backward behind the mirror's surface.12

Because the reflecting surface of a convex mirror faces away from its center of curvature, it spreads out parallel light rays. To an observer, these reflected rays appear to emanate from a point located behind the mirror, creating an image that cannot be projected onto a screen. This process results in an image that is always reduced in size, which is why convex mirrors are commonly utilized as rearview mirrors in automobiles to provide a wider field of view.3124