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Mirrors

Mirrors. Sec 19.1. Law of Reflection. Review of Law: the angle of reflection is equal to the angle of incidence We use ray diagrams to show how light rays change direction when they strike mirrors and pass through lenses. Plane Mirrors. Plane mirror –mirror with a flat surface

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Mirrors

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  1. Mirrors Sec 19.1

  2. Law of Reflection • Review of Law: the angle of reflection is equal to the angle of incidence • We use ray diagrams to show how light rays change direction when they strike mirrors and pass through lenses.

  3. Plane Mirrors • Plane mirror –mirror with a flat surface • Plane mirrors create an image through these steps: • Light rays strike you and reflect • Reflected rays then strike the mirror

  4. Plane Mirrors • Plane mirror –mirror with a flat surface • Plane mirrors create an image through these steps: • The rays are reflected again to your eye • Your brain interprets the rays to come from behind the mirror.

  5. Plane Mirrors • Plane mirrors produce a virtual image (a copy of an object formed a point from which light appears to be coming)

  6. Concave Mirrors • A concave mirror has the reflecting surface curved inwards. • The curve causes the reflected rays to come together in a point called the focal point.

  7. Concave Mirrors • Concave mirrors can form either real or virtual images, depending on where the object is located. • Use in automobile headlights and flashlights

  8. Convex Mirror • A convex mirror has the reflective surface curved outwards. • Convex mirrors always cause light rays to spread out and form only virtual images. • Used for car side mirrors and store aisle mirrors.

  9. Concave Mirrors • Concave mirrors can form either real or virtual images, depending on where the object is located. • Use in automobile headlights and flashlights

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