Rear view mirrors of cars are
also convex mirrors as they enable the driver to see a wide
area of the road behind the car.
The convex mirror makes the rays of a parallel beam diverge
as if they were coming from its focus, thereby producing
a diminished virtual image, which the driver can see.
Convex mirrors reflect rays outwards: the rays coming from
a convex mirror appear to come from a single point behind
An image is formed behind the mirror and is smaller than
the object. Convex mirrors can capture rays from a wide
Comparison between a plane mirror and a convex mirror would
show that the field of view in the case of the convex mirror
is much wider than a plane mirror.
If you are still unclear about the concepts, please refer
the animation below.