Question

What happen if convex mirror are used as a rear view mirror in vechicles

Answer 1

Convex mirrors are used as rear ciew mirrors in vehicles(cars,trucks,buses,etc.)to see traffic at the backside. This is due to the following reasons:
(a) Convex mirrors always form an erect and diminised image.
(b)They have a wider field of view as they are curved outwards.
For this purpose. plane mirrors may also be used. But a convex mirror is preferred because the field of view is wider than that of a plane mirror.