1. 5.2 Using Mirrors to Form Images
All mirrors reflect light according to the law of reflection.
A flat smooth mirror is called a plane mirror.
The mirror on the wall, in your bathroom, is probably a plane mirror.
What other surfaces are reflective? Water, spoons, …
See page 182
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2. Left and right appear to be reversed in a plane mirror.
Plane Mirrors
Plane mirrors form an image that is upright and appears to be as far behind the mirror as the object is in front of it and therefore appears to be the same size.
Left and right appear to be reversed in a plane mirror.
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3. A concave mirror is a mirror that curves inward.
Concave Mirrors
A concave mirror is a mirror that curves inward.
Light reflecting off a concave
mirror come together (converge)
and meet at a single point
called the focal point.
Light rays that come together are called converging rays.
See page 185
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4. Concave Mirrors
The image formed by a concave mirror depends on how far it is from the focal point (see A, B C).
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5. Concave Mirrors
A. If a distant image is reflected, its image is small and upside down. B. As the object approaches the focal point, its image remains inverted but gets ever larger. C. If the object is between the focal point and the mirror, thenthe image appears to be larger than the object and is upright.
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6. Spotlights, flashlights, lighthouses and car headlights
Concave Mirrors
If you place a bright light at the focal point, then all the rays bounce off the mirror and are reflected parallel to each other, making an intense focussed beam of light. 
Spotlights, flashlights, lighthouses and car headlights
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7. Uses of Concave Mirrors
Used as reflectors behind flashlight bulbs and car headlights
Used by dentists
Shaving mirrors and Make up mirrors
Used in telescopes
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8. A convex mirror is a mirror that curves outwards.
Convex Mirrors
A convex mirror is a mirror that curves outwards.
Reflect parallel rays s if they came from a focal point behind the mirror.
Reflected rays from a convex mirror diverge (spread apart) and do not meet.
See page 186
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9. Objects appear to be smaller than they are.
Convex Mirrors
Objects appear to be smaller than they are.
More objects can be seen than in a plane mirror.
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10. Security mirrors in stores Rearview mirrors in cars
Convex Mirrors Uses:
Security mirrors in stores
Rearview mirrors in cars
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11. Check your understanding
What size does the image in a plane mirror appear to be?
What distance from the mirror does an image in a plane mirror appear to be?
How is a concave mirror shaped differently from a plane mirror?
What are some uses for concave mirrors?
How is a convex mirror shaped differently from a plane mirror?
What are some uses for convex mirrors?
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