1. Light & Optics Chapters 14-16

2. Electromagnetic Wave

4. Speed of Light in a vacuum, c = 3 x 10 8 m/s for all waves, v = f for light, c = f

5. Brightness of Light inverse square law

6. Light Rays travel in a straight line in a uniform medium can bend in a non-uniform medium reflect and refract at boundaries between mediums

7. Reflection diffuse reflectionspecular reflection

8. Law of Reflection

9. Ray Diagrams

10. Plane (flat) Mirror Light rays appear to originate behind the mirror (virtual image) Left/Right reversal Distance from object to mirror (s o ) = Distance from image to mirror (s i ) Height of object (h o ) = Height of image (h i )

11. Ray Diagram for Plane Mirror

12. Spherical Mirrors

13. Focus f = focal length (distance from mirror to focus) R = radius of curvature (distance from mirror to center) R = 2f

14. Mirror Equation: Magnification Equation: M = magnification (unitless)

15. Sign Conventions +s i = real image -s i = virtual image +h = upright -h = inverted +f for concave mirrors -f for convex mirrors M>1 = image is enlarged M<1 = image is reduced

16. Ray Tracing: Concave Mirror

20. Refraction Refraction – the bending of light as it travels from one medium to another. – This happens because the speed of light changes when the medium changes.

21. Index of Refraction n = c/v n = index of refraction v = speed of light in the medium

25. Index of refraction is affected by wavelength – shorter wavelengths bend more

27. Refraction Through Glass Slab

28. Lenses

29. Lens Equations

30. Sign Conventions +s i = real image -s i = virtual image +h = upright -h = inverted +f for converging lens -f for diverging lens M>1 = image is enlarged M<1 = image is reduced -M = inverted

31. Ray Tracing: Lenses

35. Polarization

39. No light

40. Color Depends on wavelength Color of an object is the wavelength it reflects

41. Additive Color - Light

42. Subtractive Color – Pigments

43. Are You Colorblind?