40. Vehicles use ________ to see the objects coming from behind. A.Concave lens B.Convex lens C.Convex mirror D.Concave mirror
Option C Solution: Convex mirror is used as a rear view mirror in the vehicles because convex mirror always forms virtual, erect and diminished images irrespective of distance of the object. A convex mirror enables a driver to view large area of the traffic behind him.
