Chapter 17 Study Guide Answer Key Section 17.1 1. Perpendicular 2. Two dimensional 3. True 4. Specular 5. Diffuse 6. True 7. Angle 8. Incident 9. Normal 10. Reflected 11. Normal 12. Wave 13. Angle 14. Many 15. Diffuse 16. Parallel 17. specular Section 17-2 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Curvature Parallel True D C A D D C A 11. F is the focal point 12. The dashed line is the principle axis 13. The rays will be reflected through point F when they are parallel to the principal axis. 14. The image will be between C and F. 15. It will be + b/c the image is on the same side of the mirror as the object. Section 17-2 Cont.. 16. It will be real. Light converges at the image b/c d is + 17. The image will be reduced b/c the object is beyond point C. 18. The value of hi will be lower b/c the object is beyond point C. 19. True 20. Diverge 21. True 22. Virtual 23. Inverted 24. smaller Section 17-2 Cont. 25. A convex mirror produces a virtual image b/c the reflected rays always diverge. 26. The image is always smaller than then object itself and thus appears to be farther away. The image actually is closer to the mirror than the object. 27. They enlarge the area, or field of view, that the observer sees. Also, the field of view looks similar from any angle of the viewer off the principal axis. 28. The focal length is - b/c the focal point is behind the mirror. 29. Both have images with virtual negative image distances. Plane mirror images are the same size as the object and the same distance, whereas convex mirror images are smaller than the object and closer to the mirror than the object