Ask a New Optics Question

Newest Optics Questions

1. QUESTION 6 [14 marks]QUESTION 6.1 A company is researching materials to make contact lenses. One of their first steps is to
   1. 1 answer
   2. 16 views
2. Define the focal length of plane mirror
   1. 1 answer
   2. 12 views
3. A car is moving towards a person at 0.02 km/s. The speed of light is 300,000 km/s. What speed would the person measure for light
   1. 1 answer
   2. 21 views
4. Which property causes a pencil to appear bent or broken when it is placed in a glass partially filled with water?(1 point)Respon
   1. 1 answer
   2. 24 views
5. Calculate critical angle of a medium of refractive index 1.65 when light passes
   1. 1 answer
   2. asked by Blëssïñg
   3. 28 views
6. What is the meaning of a critical angle of reflected surface
   1. 1 answer
   2. asked by Blëssïñg
   3. 28 views
7. Explain why the refractive index of glass is 1.5
   1. 1 answer
   2. asked by Blëssïñg
   3. 36 views
8. What topic in physics is smells law of refraction
   1. 1 answer
   2. asked by Blëssïñg
   3. 43 views
9. 11. Light is passed through a single slit that has a width of \( 1.2 \times 10^{-7} \mathrm{~m} \). What is the wavelength of
   1. 1 answer
   2. 28 views
10. As a high-speed spaceship flies passt you, it fires strobe light that sends out a pulse of light in all directions. An observer
    1. 1 answer
    2. asked by Davepee
    3. 72 views
11. QUESTION 8 [6 marks]An experiment is set up to determine the relationship between the degree of diffraction and the wavelength
    1. 1 answer
    2. 36 views
12. QUESTION 7 [21 marks]Learners on a field trip to the aquarium observe how light rays shine through a small glass enclosure. The
    1. 1 answer
    2. 35 views
13. ___________ When light rays hit a smooth surface and bounce back at the same angelAnswer chocies: 1. Diffuse reflection 2. Ray
    1. 1 answer
    2. 38 views
14. ___________ When light rays hit a rough surface and bounce back at different angelsAnswer chocies: 1. Diffuse reflection 2. Ray
    1. 1 answer
    2. 37 views
15. ___________ A material that absorbs or reflects lightAnswer chocies: 1. Diffuse reflection 2. Ray 3. reflection 4. Opaque 5.
    1. 1 answer
    2. 34 views
16. ___________ A material that absorbs or reflects light1. Diffuse reflection 2. Ray 3. reflection 4. Opaque 5. Convex 6. Lens 7.
    1. 1 answer
    2. 24 views
17. A material that absorbs or reflects light1. Diffuse reflection 2. Ray 3. reflection 4. Opaque 5. Convex 6. Lens 7. Transparent
    1. 1 answer
    2. 29 views
18. How does the beam diameter change in the near field compared to the far field?Choose only ONE best answer. A It becomes narrower
    1. 1 answer
    2. 35 views
19. What is the width of the beam in the far field compared to the element diameter?Choose only ONE best answer. A Equal to element
    1. 1 answer
    2. 29 views
20. What happens in the far zone after the focal point?Choose only ONE best answer. A Beam starts to converge B Beam width is equal
    1. 1 answer
    2. 33 views
21. At what point is the beam width double the crystal diameter?Choose only ONE best answer. A Far field after the focal point B
    1. 1 answer
    2. 21 views
22. What happens to the beam diameter in the far field?Choose only ONE best answer. A It stays the same as the transducer diameter B
    1. 1 answer
    2. 22 views
23. What is the region where the beam diameter is equal to the element diameter at depths more than two near Zone lengths?Choose
    1. 1 answer
    2. 49 views
24. What is the focal point also known as?Choose only ONE best answer. A End of near zone for a crystal B Far field after the focal
    1. 1 answer
    2. 35 views
25. What happens in the far zone after the focal point?Choose only ONE best answer. A Beam starts to converge B Beam width is equal
    1. 1 answer
    2. 36 views
26. The stopping potential of photo-electrons depends on which of the following…(select TWO options) Explain1) The light intensity
    1. 1 answer
    2. 41 views
27. What happens if an object is placed between two parallel plane mirrors?
    1. 1 answer
    2. 30 views
28. What happens if the space between two reflectors is greater than the lateral resolution?Choose only ONE best answer. A They will
    1. 1 answer
    2. 32 views
29. Can the Law of Reflection be applied to curved mirrors, such as concave or convex mirrors? WhyWhy does a mirror appear to
    1. 1 answer
    2. 43 views
30. Law of Reflection & Plane mirrorprovide some thinking question
    1. 1 answer
    2. 24 views
31. Use the ray diagram for a lens to answer the question.The illustration shows a candle as an object to the left of a concave lens
    1. 1 answer
    2. 27 views
32. Which property causes a pencil to appear bent or broken when it is placed in a glass partially filled with water?Reflection
    1. 1 answer
    2. 37 views
33. The angle of incidence = the angle of.which one is right • rarefaction reflection • refraction • refraction
    1. 1 answer
    2. 34 views
34. In one or two sentences, make and justify a claim about two aspects of a picture that illustrate behaviors of light. [The
    1. 1 answer
    2. asked by Roe
    3. 38 views
35. How does light demonstrate quantization?A. The energy in light waves comes in units called photons. B. The wavelength of light
    1. 1 answer
    2. 38 views
36. Thinking Question: [3 marks]Diagrams, calculations, analyzing a diagram, explaining what numbers mean Writing a question in the
    1. 1 answer
    2. 30 views
37. provide 20 thinking question and 20 application question about law of reflection and plane mirror
    1. 1 answer
    2. 26 views
38. Which statement is true about the image of an object when viewed in a concave or convex mirror?(1 point)Responses When viewed in
    1. 1 answer
    2. 56 views
39. The image shows a straw in a glass of water.Which wave interaction BEST explains the distorted appearance of the straw in the
    1. 1 answer
    2. 29 views
40. Light travels:a in straight lines b around corners c in curves d in bendy lines
    1. 1 answer
    2. 35 views
41. The angle of reflection is:a opposite to the angle of incidence b 90 degrees to the angle of incidence c 180 degrees to the
    1. 1 answer
    2. 37 views
42. What causes light to slow down?a moving into a lighter medium b moving into a denser medium c moving into a vacuum d moving into
    1. 1 answer
    2. asked by jalonn:3
    3. 61 views
43. Question 4 (1 point)What happens when light waves travel from air through a denser medium? a They will slow down and bend. b
    1. 1 answer
    2. asked by jalonn:3
    3. 51 views
44. Which of the following is an example of diffraction?a Sound bending around a corner. b Light bending as it enters a prism. c
    1. 1 answer
    2. asked by jalonn:3
    3. 45 views
45. Question 4 (1 point)When a light wave enters a medium of greater density, which of the characteristics below will decrease in
    1. 1 answer
    2. asked by jalonn:3
    3. 42 views
46. Question 3The angle of reflection is: a 180 degrees to the angle of incidence b opposite to the angle of incidence c 90 degrees
    1. 5 answers
    2. asked by 45ghfg7eefgdf
    3. 62 views
47. A prism disperses white light forming a spectrum which is the best explanation for this? A. Different frequencies of visible
    1. 1 answer
    2. 39 views
48. What happens when light waves travel from air through a denser medium? A. Continue to travel in a straight line b. Travel in a
    1. 1 answer
    2. 24 views
49. What causes light to slow down? A. Moving a less adhesive medium b. Moving a denser medium c. Moving a lighter medium d. Moving
    1. 1 answer
    2. 31 views
50. Describe how a light wave changes as it travels from the air into water? A. Speeds up because water is less dense than air b.
    1. 1 answer
    2. 20 views
51. What causes light to slow down?a moving into a less adhesive medium b moving into a lighter medium c moving into a vacuum d
    1. 1 answer
    2. asked by ANSWER CORRECTLY
    3. 32 views
52. What happens to the angle of refraction as the medium becomes denser
    1. 1 answer
    2. 22 views
53. What is the term for mirror with a flat surface?a Plane mirror b Reflecting mirror c Silver mirror d Glass Mirror
    1. 1 answer
    2. 49 views
54. the angle of reflection is:A)180 degrees to the angle of incidence B)90 degrees to the angle of incidence C)equal to the angle
    1. 1 answer
    2. 33 views
55. which is the definition of refraction?a The blocking of light waves vibrating in a particular plane b The bending of a light
    1. 1 answer
    2. 49 views
56. a magnifying glass of focal lens 5cm is used to magnify small objects held 4cm from optical centre of lens. determine position
    1. 1 answer
    2. 34 views
57. What does the angle of incidence determine in reflection?Choose only ONE best answer. A The angle at which sound wave is
    1. 1 answer
    2. 25 views
58. Which of these best describes the type of lens shown in the ray diagram?(1 point) It shows a convex lens. For this type of lens,
    1. 1 answer
    2. 72 views
59. Waves Unit Test4 of 204 of 20 Items Question How do the frequencies and the speeds of yellow light and blue light compare?(1
    1. 1 answer
    2. asked by u dont know me
    3. 71 views
60. Waves Unit Test1 of 201 of 20 Items Question Use the ray diagram for a curved mirror to answer the question. An illustration
    1. 1 answer
    2. asked by u dont know me
    3. 30 views
61. Light rays that enter the whole of a pinhole camera form (an upside down real image/a right side up real image/a right side up
    1. 1 answer
    2. 38 views
62. Light travels:a in straight lines b in bendy lines c around corners d in curves
    1. 1 answer
    2. 26 views
63. QuestionWhy does white light separate into different colors? Responses refraction refraction reflection reflection magnification
    1. 1 answer
    2. asked by Kappa
    3. 59 views
64. What causes light to slow down?a moving into a vacuum b moving into a less adhesive medium c moving into a denser medium d
    1. 1 answer
    2. asked by Kappa
    3. 40 views
65. Which term best describes the process that is occurring when light bends as it enters a new substance?A. absorption B.
    1. 1 answer
    2. 21 views
66. Two students complain that they cannot see objects that are closer than 1 m from their eyes.(a) What problem do they have?
    1. 1 answer
    2. 35 views
67. Answer ALL questions, 1 - 22Mastery Assess It 11 1. What is the difference between a reflecting optical telescope and a
    1. 1 answer
    2. 64 views
68. Which phenomenon causes an object to appear bent from above the surface of one medium to below the surface of another medium?Res
    1. 1 answer
    2. 18 views
69. Which of the following is true about the index of refraction (n) of any medium?It is always more than 1. It is always 1. More
    1. 1 answer
    2. 25 views
70. Multiple Choice QuestionWhich statement best describes diffraction? A. Light bounces off a medium. B. Light bends around an
    1. 1 answer
    2. 45 views
71. What happens when sunlight is passed through a prism?Group of answer choices We can see UV rays. We can see infrared rays.
    1. 1 answer
    2. 61 views
72. the greater the frequency the wavelengthlesser greater more higher
    1. 1 answer
    2. 48 views
73. light travels1. in curves 2. around corners 3. in straight lines 4. in bendy lines
    1. 1 answer
    2. 55 views
74. light travels1. in curves 2. around corners 3.in straight lines 4. in bendy lines
    1. 1 answer
    2. 62 views
75. Light from a vacuum enters a medium with a refractive index of 2, then continues on and enters another medium with a refractive
    1. 1 answer
    2. 57 views
76. Light from a vacuum enters a medium with a refractive index of 2, then continues on and enters another medium with a refractive
    1. 1 answer
    2. 56 views
77. In what way is an image formed by a mirror inverted?(1 point)Responses From left to right From left to right From front to back
    1. 1 answer
    2. 34 views
78. How many polarized filters are needed minimally to block light intensity?(1 point)Responses two filters perpendicular to each
    1. 1 answer
    2. 38 views
79. Which of the following situations will result in the refraction of light?
    1. 3 answers
    2. 33 views
80. Observe the graphic above. Which of the following statements is true of the angle of incidence and the angle of reflection?
    1. 1 answer
    2. 21 views
81. Which of these best describes the relationship between the incident ray, the reflected ray, and the normal for a curved
    1. 1 answer
    2. 33 views
82. Waves Unit Test1 of 201 of 20 Items Question Use the ray diagram for a curved mirror to answer the question. An illustration
    1. 1 answer
    2. 40 views
83. Which is the BEST definition of refraction?Responses A Light or sound waves change direction.Light or sound waves change
    1. 1 answer
    2. 35 views
84. A black body does which of the following?Absorbs and emits perfectly Emits and reflects perfectly Reflects and absorbs perfectly
    1. 1 answer
    2. 32 views
85. Use the ray diagram for a curved mirror to answer the question. Suppose that the mirror is moved so that the tree is between the
    1. 7 answers
    2. 54 views
86. For the image of the overheard projector to be in focus, the distance from the projector lens to the image, d subscript i
    1. 1 answer
    2. 41 views
87. Consider the two-slit interference experiment. Electromagnetic radiation passes through the two slits that are a distance of
    1. 3 answers
    2. 59 views
88. Consider the two-slit interference experiment. Electromagnetic radiation passes through the two slits that are a distance of
    1. 1 answer
    2. 51 views
89. Which of these best describes the relationship between the incident ray, the reflected ray, and the normal for a curved
    1. 1 answer
    2. 92 views
90. A converging lens frorms an upright image that is four times the object size. Given that the focal length is 20cm determine
    1. 1 answer
    2. 35 views
91. We can see *Response area* objects because light *Response area* are altered by the objects. Unless an object is perfectly
    1. 1 answer
    2. 17 views
92. Which equation connects the focal length, f𝑓 , the position of the viewed object, xo 𝑥 𝑜 , and the position of the
    1. 1 answer
    2. 61 views
93. How do the frequencies and the speeds of yellow light and blue light compare?
    1. 1 answer
    2. 24 views
94. Why does white light separate into different colors?Responses dispersion dispersion magnification magnification refraction
    1. 1 answer
    2. asked by ~[Mocha]~
    3. 75 views
95. What causes light to slow down?a moving into a less adhesive medium b moving into a denser medium c moving into a lighter medium
    1. 1 answer
    2. asked by ~[Mocha]~
    3. 65 views
96. A student has to create a model of a convex lens. Which property of a convex lens should the student include in the model?a The
    1. 1 answer
    2. asked by ~[Mocha]~
    3. 51 views
97. A prism disperses white light, forming a spectrum. Which of the following is the best explanation for this phenomenon?Responses
    1. 1 answer
    2. 70 views
98. Why does white light separate into different colors?Responses dispersion dispersion reflection reflection refraction refraction
    1. 1 answer
    2. 62 views
99. Describe how a light wave changes as it travels from the air into water.a It speeds up because water is less dense than air. b
    1. 1 answer
    2. 30 views
100. 13 of 2913 of 29 ItemsQuestion Use the ray diagram for a lens to answer the question. The illustration shows a candle as an
     1. 1 answer
     2. 95 views