Final answer:
Diverging mirrors are used in vehicles for their wider field of view but have the disadvantage of distorting the size and distance of reflected objects.
Step-by-step explanation:
Diverging mirrors, such as convex mirrors, are often used as rear-view mirrors in vehicles because they provide a wider field of view, allowing drivers to see more of the road behind them. This larger field of view helps in reducing blind spots and can contribute to safer driving. However, the main disadvantage of using a diverging mirror compared with a flat mirror is that it distorts the size and distance of objects. Objects in a convex mirror appear smaller and further away than they actually are, which can sometimes make it challenging to judge the speed and distance of approaching vehicles correctly.