Question

Car rear view mirrors carry a warning that objects in the rear mirror are closer than they appear. why do you think this is so?

Answer 1

Yes, Car rear view mirrors carry a warning message that objects in the rear view mirror are closer than they appear. ... The mirrors used in cars are convex mirrors. Convex mirrors form erect and smaller images of the objects. This does not give us the exact idea how far the vehicle is from us.It is so because if we see in the mirror the objects are at far but actually they are near to fit in theirror they use convex mirror

Answer 2

A rear view is a convex mirror in which the mirror is always erect and diminished whatever the distance of the object from the mirror. The image is always with F for all positions of the object. Hence, the image distance is short and at same positions of the object, not indicative of the distance of the object.