1. Jeopardy Jeopardy PHY101 Chapter 9 Review Study of Optics Cheryl Dellai

2. Study of Optics Photons Reflection & Refraction MirrorsLenses Effects Potpourri $100 $200 $300 $400

3. Photons $100 What is a photon? ANSWER

4. Photons $200 What is the energy of a photon?

5. ANSWER Photons $300 What can happen to a photon as it moved from one medium to another.

6. ANSWER Photons $400 What is the index of refraction?

7. Reflection & Refraction $100 ANSWER State the Law of Reflection.

8. ANSWER State the Law of Refraction. Reflection & Refraction $200

9. ANSWER Reflection & Refraction $300 Why are optical fibers important for communication?

10. Reflection & Refraction $400 ANSWER Certain types of sunglasses are very effective at diminishing light reflected from surfaces because of __________.

11. Mirrors $100 ANSWER The direction of light is _____?

12. Mirrors $200 ANSWER Name 3 types of mirrors

13. Mirrors $300 ANSWER What is the mirror equation?

14. Mirrors $400 ANSWER What is the magnification equation?

15. Lenses $100 ANSWER Choose the lens having the shortest focal length.

16. Lenses $200 ANSWER What is a Diopter?

17. Lenses $300 ANSWER What is the thin lens equation?

18. Lenses $400 ANSWER A person looking through eyeglasses sees ________ & _________ images.

19. Effects $100 ANSWER Liquid crystal displays make use of __________.

20. Effects $200 ANSWER Light spreads out when it passes through a narrow slit because of __________.

21. Effects $300 ANSWER When light passes through two or more narrow slits, an alternating dark and bright pattern is observed on a screen because of _________.

22. Effects $400 ANSWER The sky is blue because of ________.

23. Potpourri $100 ANSWER Optical fibers work because of _______.

24. Potpourri $200 ANSWER You see colors in a rainbow because of _________.

25. Potpourri $300 ANSWER A ________ lens is used to compensate for hyperopia (farsighted).

26. Potpourri $400 ANSWER When myopia (nearsighted) is corrected surgically, the shape of the ________ is changed.

27. Photons $100 Answer Back to Jeopardy What is a photon? A photon is a wave packet of light.

28. Photons $200 Answer Back to Jeopardy What is the energy of a photon? Energy = hf Planck’s Constant h = 6.63*10 -34 J*s

29. Photons $300 Answer Back to Jeopardy What can happen to a photon as it moved from one medium to another. Absorbed Reflected Refracted

30. Photons $400 Answer Back to Jeopardy What is the index of refraction? n = c/v

31. Reflection & Refraction $100 Answer Back to Jeopardy State the Law of Reflection. Angle in = Angle out wrt to the normal normal 

32. Reflection & Refraction $200 Answer Back to Jeopardy State the Law of Refraction. n 1 sin  1 = n 2 sin  2

33. Reflection & Refraction $300 Answer Back to Jeopardy Why are optical fibers important for communication? They can carry thousands of times the information that wires can. This is the result of internal refraction.

34. Reflection & Refraction $400 Answer Back to Jeopardy Certain types of sunglasses are very effective at diminishing light reflected from surfaces because of polarization.

35. Mirrors $100 Answer Back to Jeopardy The direction of light is positive?

36. Mirrors $200 Answer Back to Jeopardy Name 3 types of mirrors Flat R = infinity Concave R = + Convex R = -

37. Mirrors $300 Answer Back to Jeopardy What is the mirror equation? s -1 + p -1 = 2/R = f -1 s = source p= projection

38. Mirrors $400 Answer Back to Jeopardy What is the magnification equation? s = source p= projection

39. Lenses $100 Answer Back to Jeopardy Choose the lens having the shortest focal length. A The thickest in the middle has the shortest focal length. These are all positive (converging) lenses

40. Lenses $200 Answer Back to Jeopardy What is a Diopter? DO =1/f where f is in meters

41. Lenses $300 Answer Back to Jeopardy What is the thin lens equation? s -1 + p -1 = f -1 =(n 2 /n 1 -1)*(1/R 1 – 1/R 2 ) s = source p= projection

42. Lenses $400 Answer Back to Jeopardy A person looking through eyeglasses sees virtual & erect images.

43. Effects $100 Answer Back to Jeopardy Liquid crystal displays make use of polarization.

44. Effects $200 Answer Back to Jeopardy Light spreads out when it passes through a narrow slit because of diffraction.

45. Effects $300 Answer Back to Jeopardy When light passes through two or more narrow slits, an alternating dark and bright pattern is observed on a screen because of interference.

46. Effects $400 Answer Back to Jeopardy The sky is blue because of scattering.

47. Potpourri $100 Answer Back to Jeopardy Optical fibers work because of total internal reflection.

48. Potpourri $200 Answer Back to Jeopardy You see colors in a rainbow because of dispersion.

49. Potpourri $300 Answer Back to Jeopardy A converging lens is used to compensate for hyperopia (farsighted).

50. Potpourri $400 Answer Back to Jeopardy When myopia (nearsighted) is corrected surgically, the shape of the cornea is changed.

51. Thank You for playing Study of Optics Jeopardy!