Laboratory: Geometrical Optics
Use the following website:
http://micro.magnet.fsu.edu/primer/lightandcolor/index.html to complete this lab.
1. Select Electromagnetic Radiation on the Light and Color page.
2. Define electromagnetic radiation:
3. Electromagnetic Radiation is also known as ______________________energy.
4. Which laws did the theories of Christian Huygens explain?
5. Under Interactive Java Tutorial, select Electromagnetic Radiation.
6. Observe the effects on the electromagnetic wave by adjusting the amplitude and
wavelength.
7. Return to the Light and Color page.
8. Select Reflection of Light.
9. Define reflection:
10. Under Interactive Java Tutorial, select Reflection of Light.
11. Observe the effects on reflecting waves by adjusting the wavelength and incident
angle.
12. What does the Law of Reflection state?
13. Under Interactive Java Tutorial, select Specular and Diffuse Reflection.
14. Define specular reflection:
15. Define diffuse reflection:
16. Use the tutorial to change surface roughnesses and observe.
17. Under Interactive Java Tutorial, select Concave Spherical Mirrors.
18. Use the tutorial to observe how changing object positions affects image positions.
19. Where should the object be placed in order to produce a real image of the same size
as the object?
20. What region must the object be placed in to produce a real image that is smaller than
the object?
21. Under Interactive Java Tutorial, select Convex Spherical Mirrors.
22. Use the tutorial to observe how changing object positions affects image positions.
23. What region must the object be placed in to produce a virtual image of the object?
24. Describe a common application for a convex mirror.
25. Return to the Light and Color page.
26. Select Refraction of Light.
27. Define refraction:
28. Under Interactive Java Tutorial, select Refraction of Light.
29. Observe the effects of changing wavelength, incident angle, and material on the
refraction of light.
30. Which material causes the largest change in direction for monochromatic red light?
31. What is the formula for the index of refraction?
32. Return to the Light and Color page.
33. Select Polarization of Light.
34. Define polarization.
35. Under Interactive Java Tutorial, select Polarization of Light.
36. Observe the effects of changing the angles of the polarizers being used on the light
waves.
37. Return to the Light and Color page.
38. Select Introduction to Lenses and Geometrical Optics.
39. Define lens:
Laboratory: Geometrical Optics (Continued)
40. Under Interactive Java Tutorial, select Image Formation with Converging Lenses.
41. Use the tutorial to observe the relationship between object position and image
position for a bi-convex lens.
42. Is it possible to create a virtual image using only a bi-convex lens? YES / NO
43. If yes, in what region should the object be placed?
44. Convex lenses are primarily used for two purposes. They are:
45. Under Interactive Java Tutorial select Image Formation With Diverging Lenses.
46. Use the tutorial to observe the relationship between object position and image
position for a bi-concave lens.
47. What is another term used to describe a bi-concave lens?
RESEARCH QUESTIONS:
48. An optical defect in a lens system is commonly referred to as an _________________
49. Name the 7 common lens defects.
50. A light emitting diode (LED) can have 13 different color variations. What are they?