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Optics

Optics. Can you believe what you see?. Optics. Reflection: Light is retransmitted from or “bounces off” an object. The angle of incidence equals the angle of reflection. Optics. Law of Reflection:. Light “bends” or changes its angle as it moves from one medium to another. Optics.

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Optics

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  1. Optics Can you believe what you see?

  2. Optics Reflection: Light is retransmitted from or “bounces off” an object

  3. The angle of incidence equals the angle of reflection. Optics Law of Reflection:

  4. Light “bends” or changes its angle as it moves from one medium to another. Optics Refraction

  5. What you “see” when you look into a mirror or through a lens. Optics Images

  6. A real image can be projected onto a surface. Optics Virtual Image A virtual image cannot be projected onto a surface. Real Image

  7. Plane Mirrors Optics • Flat mirrors Always produce an image that is behind the mirror. Mirrors

  8. Spherical Mirrors Optics • Concave mirror Formed on the inside of a sphere Mirrors Convex mirror Formed on the outside of a sphere

  9. Spherical Mirrors

  10. Focal Point Optics • The point where parallel beams of light converge after reflecting Basic Terminology Center of curvature The center point of the circle made by a concave or convex mirror.

  11. Converging Lens Optics • Parallel beams of light come together after refracting through the lens • Example: Magnifying Glass Lenses

  12. Diverging Lens Optics • Parallel beams of light spread apart after refracting through the lens • Example: Certain eye glasses Lenses

  13. Let us predict where an image will form Optics • A light ray is drawn as a simple line with an arrow indicating the direction Ray Diagrams

  14. Concave mirrors—principle rays Optics Incident ray parallel to axis, reflected ray through the focal point

  15. Concave mirrors—principle rays Optics Incident ray through the focal point, reflected parallel to axis

  16. Concave mirrors—principle rays Optics Incident ray through the center point, reflected through the center point

  17. Concave mirrors—examples Optics Image is smaller, inverted and real

  18. Convex mirrors—principle rays Optics Incident ray parallel to the axis, reflected away from focal point (virtual) (virtual ray)

  19. Convex mirrors—principle rays Optics Incident ray toward the focal point, reflected parallel to the axis

  20. Convex mirrors—principle rays Optics Incident ray toward the center point, reflected toward away from the center point

  21. Convex mirrors—examples Optics Image: smaller, upright, virtual

  22. Converging Lens Optics

  23. Converging Lens Optics

  24. Converging Lens Optics

  25. Converging Lens Optics

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