Convex Mirrors in vehicles

Why convex mirrors are used in vehicles? Why plain mirrors or concave mirrors are not used?How to distinguish by looking at a image if the mirror is convex,concave or plain mirror?

1. Why convex mirrors are used in rear view mirrors in vehicles?

2. Learning Objectives: How image forms? Spherical Mirrors - Types Ray Diagram of Mirrors –convex mirrors Properties of Mirrors –convex mirrors Uses of convex mirrors

3. How image forms? Light waves travel from their source in all directions and in a straight line. If a light wave hits an object, it may be reflected, or it may bounce off the object.

4. Spherical Mirrors Formed by a part of curved part of a hollow glass. Two types- Convex Concave

5. A convex mirror curves outward like the back of a spoon. Convex mirrors cause a beam of light to diverge , or spread apart as if it came from a focal point behind the mirror. Ray Diagram of Mirrors –convex mirrors

6. P roperties of Mirrors –Convex M irrors All images formed by a convex mirror are virtual, right side up, and small. Convex mirrors are useful because they make small images of large areas.

7. A virtual image is an image that appears to come from a place that the light does not actually come from.

8. Many cars, buses, and trucks use convex side mirrors so the driver can see more of the surrounding area.

9. Convex mirrors are used in rear-view mirrors in vehicles as the images formed by convex erect, virtual, full size diminished image of distant objects with a wider field of view . Where as in plane mirrors, the image formed is not diminished and it won’t gives us a wider view Concave mirrors forms inverted images, hence not suitable for using in vehicles(Why?)

10. Plain ,convex or concave mirror?