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REFLECTION

REFLECTION. REFLECTION. REFLECTION. Normal Line. A reference line perpendicular to the interface where two mediums meet. Normal line. air. water. Incident Ray & Reflected Ray. Incident ray is the incoming light ray Reflected ray bounces back from a boundary . Normal line.

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REFLECTION

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  1. REFLECTION

  2. REFLECTION

  3. REFLECTION

  4. Normal Line A reference line perpendicular to the interface where two mediums meet. Normal line air water

  5. Incident Ray & Reflected Ray Incident ray is the incoming light ray Reflected ray bounces back from a boundary Normal line Reflected Ray Incident Ray air glass

  6. Snell’s Law θr θi The angle of incidence = the angle of reflection θi θr * Angles are measured from the normal line

  7. REFRACTION The bending of waves

  8. REFRACTION

  9. Incidient Ray & Refracted Ray Normal line Incident Ray air water Refracted Ray

  10. When the incident ray goes from a less dense medium to a more dense medium it bends toward the normal line Incident Ray Normal line air water Refracted Ray

  11. When the incident ray goes from a more dense medium to a less dense medium it bends away from the normal line Incident Ray Normal line Refracted Ray air water

  12. REFRACTION Normal line * The eye can only see reflected light. Incoming light ray to the eye from the fish in the MORE dense medium (water) bends away from the normal line.

  13. REFRACTION The coin can be seen when the cup is filled with water The coin in the cup cannot be seen from this position

  14. Reflection can occur in both solids (mirror), liquids (water) and light (light we see). • Refraction can occur is liquids, sound, and light

  15. diffraction Waves that go through n and around corners a R R O W O S P G E N N I

  16. DIFFRACTION

  17. DIFFRACTION

  18. DIFFRACTION Constructive and Destructive Interference causes light and dark patterns

  19. POLARIZATION Electromagnetic waves radiate out in all directions

  20. TOTAL INTERNAL REFLECTION θr θr θc θi As the angle of incidence increases, the refracted ray increases moving away from the normal line until it finally bends back into the denser medium.

  21. TOTAL INTERNAL REFLECTION Inner Glass Core Optic Fiber Laser Beam Laser Light Path

  22. TOTAL INTERNAL REFLECTION

  23. TOTAL INTERNAL REFLECTION The Critical Ray is the angle above which total internal reflection occurs.

  24. TOTAL INTERNAL REFLECTION

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