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Electromagnetic spectrum reviewsheet
Name: Date:
1. The diagram here shows a pinhole camera. Howwill the image of the letter “T” on the screen ofthe pinhole camera appear to the observer?
A. B.
C. D.
2. In the diagram here a light ray passes obliquelyfrom air into a glass block. Which path representsthe refracted ray of light?
A. A B. B
C. C D. D
3. As the frequency of radio waves is decreased fromvhf to standard frequency, the degree of refractionof the waves by the ionosphere
A. decreases B. increases
C. remains the same
4. In the diagram shown, at which point did therefracted ray OX originate?
A. A B. B
C. C D. D
5. The diagram shows a ray of light being refractedas it passes from air into glass. Which letterrepresents the angle of refraction for the light ray?
A. A B. B
C. C D. D
6. A ray of light emerges from a glass block into airas shown in the diagram. Which path would thelight ray take?
A. A B. B
C. C D. D
7. If two identical sound waves arriving at the samepoint are in phase, compared to the original waves,the resulting wave will have
A. an increase in speed
B. an increase in frequency
C. a larger amplitude
D. a longer period
page 1
8. In which of the following materials is the speedof light the greatest?
A. quartz B. alcohol
C. glycerol D. benzene
9. Which diagram best illustrates wave refraction?
A.
B.
C.
D.
10. In the diagram, light ray AO is incident on aLucite-air surface at point O. Through which pointwill the reflected ray pass?
A. 1 B. 2
C. 3 D. 4
11. Light travels from medium A where its speed is2.5 × 108 meters per second into medium B whereits speed is 2.0× 108 meters per second. Comparedto the absolute index of refraction of medium A,the absolute index of refraction of medium B is
A. less B. greater C. the same
12. The diagram shown represents a ray ofmonochromatic light (f = 5.08 × 1014 Hz) passingfrom air to benzene, through material X, and backinto air.
Which line represents the path of the light rayafter it reenters the air at point A ?
A. 1 B. 2 C. 3 D. 4
13. In the diagram shown, light ray AO is incident ona Lucite-air surface at point O. Through whichpoint will the reflected ray pass?
A. 1 B. 2
C. 3 D. 4
page 2 Electromagnetic spectrum reviewsheet
14. The diagram shown represents light shiningthrough a pair of slits 3.0 × 10−3 meter apart andonto a screen. What color of light produces a firstorder bright band that is 2.0 × 10−4 meter from thecenter of the interference pattern?
A. green B. orange
C. red D. violet
15. When the beams from two coherent light sourcesare projected on a screen, alternating brightand dark areas are produced. This phenomenonillustrates light
A. polarization B. interference
C. dispersion D. refraction
16. In the diagram shown, a monochromatic light rayis passing from medium A into medium B. Theangle of incidence θ is varied by moving the lightsource S. When angle θ becomes the criticalangle, the angle of refraction will be
A. 0◦
B. θ
C. greater than θ, but less than 90◦
D. 90◦
17. Which wave phenomenon is represented in thediagram here?
A. refraction
B. diffraction
C. reflection
D. interference
18. The diagram shown represents straight wave frontsapproaching an opening in a barrier. Whichdiagram best represents the shape of the wavesafter passing through the opening?
A.
B.
C.
D.
page 3 Electromagnetic spectrum reviewsheet
19.
Base your answers on the diagram of a light ray(λ = 5.9 × 10−7 m) in air incident on a rectangularblock of Lucite.
a) Determine the angle of refraction, in degrees,of the light ray as it enters the Lucite fromair. [Show all calculations.]
b) On the diagram, using a protractor andstraight edge, draw the path of the lightray as it travels from air, through theLucite, and back into the air. Label allangles of incidence and refraction with theirappropriate numeric values.
20. In the diagram, a ray of light enters a transparentmedium from air. If angle X is 45◦ and angle Yis 30◦, what is the absolute index of refraction ofthe medium?
A. 0.667 B. 0.707
C. 1.41 D. 1.50
21. Monochromatic light passes through two parallelnarrow slits and forms an interference pattern on ascreen. As the distance between the two slits isincreased, the distance between light bands in thepattern on the screen will
A. decrease B. increase
C. remain the same
22. The diagram shows a ray of light, R, enteringglass from air. Which path is the ray most likelyto follow in the glass?
A. A B. B
C. C D. D
23. As shown in the diagram, a beam of light canpass through the length of a curved glass fiber.This phenomenon is possible due to the effect of
A. dispersion B. internal reflection
C. polarization D. diffraction
24. In the diagram, two speakers are connected to asound generator. The speakers produce a soundpattern of constant frequency such that a listenerwill hear the sound very well at A and C, but notas well at point B. Which wave phenomenon isillustrated by this experiment?
A. interference B. polarization
C. reflection D. refraction
page 4 Electromagnetic spectrum reviewsheet
25. A car radio is tuned to the frequency beingemitted from two transmitting towers. As thecar moves at constant speed past the towers, asshown in the diagram, the sound from the radiorepeatedly fades in and out. This phenomenon canbest be explained by
A. refraction B. interference
C. reflection D. resonance
26. The diagram represents a light ray passing fromcorn oil into medium X with no change in velocity.In this diagram, medium X could be
A. water
B. diamond
C. glycerol
D. alcohol
27. The diagram shows a ray of light passing frommedium X into air. What is the absolute index ofrefraction of medium X ?
A. 0.50 B. 2.0
C. 1.7 D. 0.58
28. In the diagram, a ray of monochromatic light(λ = 5.9 × 10−7 meter) reaches the boundarybetween medium X and air and follows the pathshown. Which medium is most likely medium X ?
A. diamond
B. flint glass
C. Lucite
D. water
29. A beam of light crosses a boundary between twodifferent media. Refraction can occur if
A. the angle of incidence is 0◦
B. there is no change in the speed of the wave
C. the media have different indices of refraction
D. all of the light is reflected
page 5 Electromagnetic spectrum reviewsheet
30. Base your answers on the diagram given, whichshows light ray AO in Lucite. The light ray strikesthe boundary between Lucite and air at point Owith an angle of incidence of 30◦. The dotted linerepresents the normal to the boundary at point O.
Calculate the angle of refraction for incidentray AO. [Show all calculations, including theequation and substitutions with units.]
31. Using your answer from the previous question,construct an arrow with a protractor andstraightedge, to represent the refracted ray.
32. Calculate the critical angle for a Lucite-airboundary. [Show all calculations, including theequation and substitutions with units.]
33. The diagram represents wave fronts traveling frommedium X into medium Y . All points on any onewave front shown must be
A. traveling with the same speed
B. traveling in the same medium
C. in phase
D. superposed
34. A ray of monochromatic light(λ = 5.9 × 10−7 meter
)traveling in air is
incident on an interface with a liquid at an angleof 45◦, as shown in the diagram.
If the absolute index of refraction of the liquidis 1.4, the angle of refraction for the light ray isclosest to
A. 10◦ B. 20◦
C. 30◦ D. 40◦
page 6 Electromagnetic spectrum reviewsheet
35. A ray of monochromatic light traveling in airenters a rectangular glass block obliquely andstrikes a plane mirror at the bottom. Then theray travels back through the glass and strikes theair-glass interface. Which diagram best representsthe path of this light ray? [N represents thenormal to the surface.]
A.
B.
C.
D.
36. A ray of monochromatic light is traveling in flintglass. The ray strikes the flint glass-air interfaceat an angle of incidence greater than the criticalangle for the flint glass. Which diagram bestrepresents the path of this light ray?
A. B.
C. D.
37. The accompanying diagram shows how an observerlocated at point P on Earth can see the Sun whenit is below the observer’s horizon.
This observation is possible because of the abilityof Earth’s atmosphere to
A. reflect light B. diffract light
C. refract light D. polarize light
page 7 Electromagnetic spectrum reviewsheet
38. Which diagram best represents the path of lightrays passing through a glass prism?
A.
B.
C.
D.
39. Base your answer(s) to the following question(s)on the diagram below, which shows a light ray inwater incident at an angle of 60.◦ on a boundarywith plastic.
Using a protractor, measure the angle of refractionto the nearest degree.
40. Determine the absolute index of refraction forthe plastic. [Show all calculations, including theequation and substitution with units.]
41. Base your answer(s) to the following question(s)on the diagram below which represents a beamof monochromatic light (λ = 5.9 × 10−7 meter)traveling from Lucite into air.
What is the measure of the angle of refraction?[Use a protractor or a mathematical calculation.]
A. 19◦ B. 30.◦ C. 49◦ D. 60.◦
page 8 Electromagnetic spectrum reviewsheet
42. The diagram below shows a ray of light(λ = 5.9 × 10−7 meter) traveling from air intomedium X.
If the angle of incidence is 30.◦ and the angle ofrefraction is 19◦, medium X could be
A. air B. alcohol
C. Canada balsam D. glycerol
43. The accompanying diagram shows a ray of lightpassing from medium X into air.
What is the absolute index of refraction ofmedium X?
A. 0.500 B. 2.00 C. 1.73 D. 0.577
44. Base your answer(s) to the following question(s)on the information and diagram below. Amonochromatic beam of yellow light, AB, isincident upon a Lucite block in air at an angle of33◦.
Calculate the angle of refraction for incidentbeam AB. [Show all work, including the equationand substitution with units.]
45. Using a straightedge, a protractor, and your answerfrom the previous question, draw an arrow torepresent the path of the refracted beam.
page 9 Electromagnetic spectrum reviewsheet
46. Base your answer(s) to the following question(s)on the diagram below which shows a ray ofmonochromatic light (f = 5.09× 1014 hertz) passingthrough a flint glass prism.
Calculate the angle of refraction (in degrees) ofthe light ray as it enters the air from the flintglass prism. [Show all calculations, including theequation and substitution with units.]
47. Using a protractor and a straightedge, construct therefracted light ray in the air on the diagram below.
48. Base your answer(s) to the following question(s)on the information and diagram.
A ray of light passes from air into a block oftransparent material X as shown in the diagram.
Measure the angles of incidence and refraction tothe nearest degree for this light ray at the air intomaterial X boundary.
49. Calculate the absolute index of refraction ofmaterial X. [Show all work, including the equationand substitution with units.]
50. The refracted light ray is reflected from thematerial X–air boundary at point P. Using aprotractor and straightedge, on the diagram above,draw the reflected ray from point P.
page 10 Electromagnetic spectrum reviewsheet
51. Which ray diagram best represents the phenomenonof refraction?
A. B.
C. D.
52. A ray of monochromatic light (f = 5.09 × 1014
hertz) in air is incident at an angle of 30.◦ on aboundary with corn oil. What is the angle ofrefraction, to the nearest degree, for this light rayin the corn oil?
A. 6◦ B. 20.◦ C. 30.◦ D. 47◦
53. Base your answer(s) to the following question(s)on the information and diagram below.
A light ray with a frequency of 5.09 × 1014 hertztraveling in air is incident at an angle of 40◦ onan air-water interface as shown. At the interface,part of the ray is refracted as it enters the waterand part of the ray is reflected from the interface.
On the diagram below, using a protractor andstraightedge, draw the refracted ray. Label this ray“Refracted ray.”
page 11 Electromagnetic spectrum reviewsheet
54. Base your answer(s) to the following question(s)on the diagram below, which represents a ray ofmonochromatic light (f = 5.09 × 1014 hertz) in airincident on flint glass.
Calculate the angle of refraction of the light rayin the flint glass. [Show all work, including theequation and substitution with units.]
55. Base your answer(s) to the following question(s)on the information and diagram below.
A ray of monochromatic light offrequency 5.09 × 1014 hertz is traveling fromwater into medium X. The angle of incidencein water is 45◦ and the angle of refraction inmedium X is 29◦, as shown.
Calculate the absolute index of refraction ofmedium X. [Show all work, including the equationand substitution with units.]
56. Base your answer(s) to the following question(s)on the diagram below, which shows a light ray(f = 5.09 × 1014 Hz) in air, incident on a boundarywith fused quartz. At the boundary, part of thelight is refracted and part of the light is reflected.
Using a protractor and straightedge, construct thereflected light ray on the diagram above.
page 12 Electromagnetic spectrum reviewsheet
57. Base your answer(s) to the following question(s)on the information and diagram below
A ray of monochromatic light having afrequency of 5.09 × 1014 hertz is incident onan interface of air and corn oil at an angle of35◦ as shown. The ray is transmitted throughparallel layers of corn oil and glycerol and isthen reflected from the surface of a planemirror, located below and parallel to theglycerol layer. The ray then emerges fromthe corn oil back into the air at point P.
Calculate the angle of refraction of the light rayas it enters the corn oil from air. [Show all work,including the equation and the substitution withunits.]
58. On the diagram above, use a protractor andstraightedge to construct the refracted rayrepresenting the light emerging at point P into air.
59. A ray of light (f = 5.09 × 1014 Hz) traveling in airis incident at an angle of 40.◦ on an air-crownglass interface as shown below.
What is the angle of refraction for this light ray?
A. 25◦ B. 37◦ C. 40◦ D. 78◦
60. A ray of monochromatic yellow light(f = 5.09 × 1014 Hz) passes from water throughflint glass and into medium X, as shown below
The absolute index of refraction of medium X is
A. less than 1.33
B. greater than 1.33 and less than 1.52
C. greater than 1.52 and less than 1.66
D. equal to 1.66
page 13 Electromagnetic spectrum reviewsheet
Problem-Attic format version 4.4.178c_ 2011–2013 EducAide Software
Licensed for use by Simone ShakerTerms of Use at www.problem-attic.com
Electromagnetic spectrum reviewsheet 05/25/2013
1.Answer: A
2.Answer: C
3.Answer: B
4.Answer: C
5.Answer: D
6.Answer: A
7.Answer: C
8.Answer: B
9.Answer: D
10.Answer: D
11.Answer: B
12.Answer: A
13.Answer: D
14.Answer: B
15.Answer: B
16.Answer: D
17.Answer: B
18.Answer: D
19.Answer: n1 sin θ = n2 sin θ2,
1.00(sin 53◦) = 1.50(sin θ2),1.00(0.7986) = 1.50(sin θ2),0.5324 = sin θ2, 32◦ = θ2;[see answersheet]
20.Answer: C
21.Answer: A
22.Answer: C
23.Answer: B
24.Answer: A
25.Answer: B
26.Answer: C
27.Answer: B
28.Answer: D
29.Answer: C
30.Answer: n1 sin θ1 = n2 sin θ2 = 1.50 sin 30◦ =
1.00 sin θ2; θ = 48.6◦
31.
32.Answer: sin θc = 1
m ; sin θc = 11.5 = 42◦
33.Answer: C
34.Answer: C
35.Answer: A
36.Answer: A
37.Answer: C
Teacher’s Key Page 2
38.Answer: A
39.Answer: 40◦
40.Answer: 1.8
41.Answer: C
42.Answer: C
43.Answer: C
44.Answer: 21◦
45.Answer:
46.Answer: 68◦
47.Answer:
48.Answer: angle of incidence 45◦ (±2◦)
angle of refraction 26◦ (±2◦).
49.Answer: n1 sin θ1 = n2 sin θ2
n2 =(1.00)(sin 45◦)
sin 26◦
n2 = 1.61
50.Answer: Allow 1 credit if the reflected ray is
drawn through material X at an angleof reflection of 64◦ (±2◦)
51.Answer: C
52.Answer: B
Teacher’s Key Page 3
53.Answer:
54.Answer: Example of a 2-credit response:
55.Answer: Example of a 2-credit response:
56.Answer: reflected ray at an angle of 17◦ ±2◦, or
an answer that is consistent with thestudent’s response to question 68.
57.Answer:
58.Answer: 35◦ ±2◦ to the normal.
Teacher’s Key Page 4
59.Answer: A
60.Answer: D
