A convex mirror bulges outward to reflect a wider angle at edges, and the image is smaller than the actual size. Smaller images for the car side view mirrors allows you to see more of the road. The law of reflection means that when Light hits a surface, it bounces off in a particular way. This is a virtual image since we think the light is coming off the mirror in a straight line.
Concave mirrors bend inward in order to make objects larger. Concave mirrors can produce a real image due to the way their curve bounces light. Due to a focal point, the object seems upside down from far away but not up close.
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