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Curved Mirrors
Reflection Characteristics Attitude Type Inverted Upright Size Real Virtual Laterally Inverted Same Enlarged Reduced
Type Real - image appears in front of the mirror (could be projected onto a screen) Virtual - image appears behind the mirror
Size a) Enlarged - image is larger than the object b) Reduced - image is smaller than the object c) Same - image is the same size as the object a) b) c)
Attitude a) Upright- image is right-side up b) Inverted- image is upside-down c) Laterally Inverted- image is flipped    		 			     horizontally a) MIRROR b) MIRROR MIRROR c) MIRROR
Curved Mirrors Concave Convex “converging” mirror “diverging” mirror
Concave Mirrors
Concave Mirrors
f Terminology Focal Point (F) - where the light rays meet Vertex - the middle point of a curved mirror Focal Length (f) - the distance from the focal point to the vertex vertex principal axis
Concave Mirror Ray Diagrams Ray 1 - travels parallel to the principal axis and reflects through the focal point (F)
Concave Mirror Ray Diagrams Ray 2 - travels through the focal point and reflects parallel to the principal axis
Concave Mirror Ray Diagrams The point where the two reflected rays converge will be the location of the image
Concave Mirror Reflections 4 Cases Object is greater than 2 focal lengths from the mirror (do>2f) Object is between 1 and 2 focal lengths from the mirror (f<do<2f) Object is at the focal point (do=f) Object is between the mirror and the focal point (0<do<f)
Case 1: Reduced Inverted Real
Case 2:  Enlarged Inverted Real
Case 3:  No Image Formed!
Case 4:  Enlarged Upright Virtual
Handout p.429 “Drawing Ray Diagrams for Concave and Convex Mirrors”
Convex Mirrors
Curved Mirrors Concave Convex “converging” mirror “diverging” mirror
Convex Mirrors Surface of mirror is curved outward Spreads out light rays (“diverging” mirror) Produces a virtual image that is upright and smaller than the object
Convex Mirrors
Convex Mirrors
Ray Diagrams for Convex Mirrors Ray 1: travels parallel to the principal axis and reflects through the focal point
Ray Diagrams for Convex Mirrors Ray 2: travels towards the focal point and reflects parallel to the principal axis
Ray Diagrams for Convex Mirrors The image appears where the (virtual) reflected rays appear to intersect
Remember: The image for a convex mirror is always virtual, upright and smaller!
Try it!
Curved Mirrors

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Curved Mirrors

  • 2. Reflection Characteristics Attitude Type Inverted Upright Size Real Virtual Laterally Inverted Same Enlarged Reduced
  • 3. Type Real - image appears in front of the mirror (could be projected onto a screen) Virtual - image appears behind the mirror
  • 4. Size a) Enlarged - image is larger than the object b) Reduced - image is smaller than the object c) Same - image is the same size as the object a) b) c)
  • 5. Attitude a) Upright- image is right-side up b) Inverted- image is upside-down c) Laterally Inverted- image is flipped horizontally a) MIRROR b) MIRROR MIRROR c) MIRROR
  • 6. Curved Mirrors Concave Convex “converging” mirror “diverging” mirror
  • 9. f Terminology Focal Point (F) - where the light rays meet Vertex - the middle point of a curved mirror Focal Length (f) - the distance from the focal point to the vertex vertex principal axis
  • 10. Concave Mirror Ray Diagrams Ray 1 - travels parallel to the principal axis and reflects through the focal point (F)
  • 11. Concave Mirror Ray Diagrams Ray 2 - travels through the focal point and reflects parallel to the principal axis
  • 12. Concave Mirror Ray Diagrams The point where the two reflected rays converge will be the location of the image
  • 13. Concave Mirror Reflections 4 Cases Object is greater than 2 focal lengths from the mirror (do>2f) Object is between 1 and 2 focal lengths from the mirror (f<do<2f) Object is at the focal point (do=f) Object is between the mirror and the focal point (0<do<f)
  • 14. Case 1: Reduced Inverted Real
  • 15. Case 2: Enlarged Inverted Real
  • 16. Case 3: No Image Formed!
  • 17. Case 4: Enlarged Upright Virtual
  • 18. Handout p.429 “Drawing Ray Diagrams for Concave and Convex Mirrors”
  • 20. Curved Mirrors Concave Convex “converging” mirror “diverging” mirror
  • 21. Convex Mirrors Surface of mirror is curved outward Spreads out light rays (“diverging” mirror) Produces a virtual image that is upright and smaller than the object
  • 24. Ray Diagrams for Convex Mirrors Ray 1: travels parallel to the principal axis and reflects through the focal point
  • 25. Ray Diagrams for Convex Mirrors Ray 2: travels towards the focal point and reflects parallel to the principal axis
  • 26. Ray Diagrams for Convex Mirrors The image appears where the (virtual) reflected rays appear to intersect
  • 27. Remember: The image for a convex mirror is always virtual, upright and smaller!