Convex Mirror

A very short introductory lecture for mirrors and ray tracing. It is best to use this after discussing plane mirrors and/or reflection.

1. myrna.com

2. What kind of mirror is used in this instance?

3. Image Formation on a Convex Mirror Ray Tracing

4. Today Recall of the Ray Tracing Steps in concave mirrors Convex mirrors Characteristics Image formation through ray tracing Applications Formative Assessment Exercises

5. F C

6. How does a convex mirror look like?

7. Reflecting part is the outer layer. This is what you are seeing right now. A convex mirror . c

8. A convex mirror’s reflecting surface is on the “bulging” part of the mirror.

9. Try moving away and toward the mirror. What have you noticed with your image on it?

10. Major rays to locate the image formed on a convex mirror:

11. Parallel Ray

12. F C the reflected ray SEEMS TO COME FROM THE FOCAL POINT

13. Focal Ray

14. The incident ray SEEM TO PASS THROUGH THE FOCAL POINT is reflected back PARALLEL TO THE PRINCIPAL AXIS. F C

15. Straight Ray

16. The reflected ray bounces off in the same direction as the incident ray. F C

17. Locating the image

18. F C

19. Characteristics of an image formed by a convex mirror: Type: Size: Orientation: Location :

20. What happens when a concave mirror is used instead of a convex?

21. wikipedia.com

22. pittman.ie

23. Clicker Question The image formed in a convex mirror is smaller than the object. This would make a convex mirror useful for which application? Makeup or shaving mirror Wide-angle mirror, such as on a car or a blind intersection A mirror in a clothing store dressing room

24. Complete the statements: Convex mirrors have _________. Convex mirrors always produce _______. Convex mirrors never _______.

25. Exercises Locate and describe the image formed on the convex mirror . C’ F’ V C F 2 cm 2 cm 6 cm