Section 1 Refraction of Light: Practice Problems

Chapter 18 Practice Problems, Review, and Assessment

Section 1 Refraction of Light: Practice Problems

1. A laser beam in air enters ethanol at an angle of incidence of 37.0°. What is the angle of refraction?

SOLUTION:

ANSWER: 26.3o

2. As light travels from air into water, the angle of refraction is 25.0° to the normal. Find the angle of incidence.

SOLUTION:

ANSWER: 34.2o

3. Light in air enters a diamond facet at 45.0°. What is the angle of refraction?

SOLUTION:

eSolutionsANSWER: Manual - Powered by Cognero Page 1 17.0o

Section 1 Refraction of Light: Review

7. Index of Refraction A ray of light in air has an angle of incidence of 30.0° on a block of unknown material and an angle of refraction of 20.0°, as shown in Figure 10. What is the index of refraction of the material?

SOLUTION:

ANSWER: 1.46

9. Speed of Light What is the speed of light in chloroform (n = 1.51)?

SOLUTION:

ANSWER: 1.99×108 m/s

Chapter Assessment Section 1 Refraction of Light: Mastering Concepts

37. How does the angle of incidence compare with the angle of refraction when a light ray passes from air into glass at a nonzero angle?

SOLUTION: The angle of incidence is larger than the angle of refraction, because air has a smaller index of refraction.

ANSWER: The angle of incidence is larger than the angle of refraction, because air has a smaller index of refraction.

38. How does the angle of incidence compare with the angle of refraction when a light ray leaves glass and enters air at a nonzero angle?

SOLUTION: The angle of incidence is smaller than the angle of refraction, because glass has a larger index of refraction.

ANSWER: The angle of incidence is smaller than the angle of refraction, because glass has a larger index of refraction.

40. Ranking Task Figure 29 depicts a ray of light traveling from air into several mediums. Rank the mediums according to index of refraction from greatest to least. Specifically indicate any ties.

SOLUTION: C > D > B > A

ANSWER: C > D > B > A

Section 1 Refraction of Light: Practice Problems

1. A laser beam in air enters ethanol at an angle of incidence of 37.0°. What is the angle of refraction?

SOLUTION:

ANSWER: 26.3o

2. As light travels from air into water, the angle of refraction is 25.0° to the normal. Find the angle of incidence.

SOLUTION:

ANSWER: Chapter34.2 o18 Practice Problems, Review, and Assessment

3. Light in air enters a diamond facet at 45.0°. What is the angle of refraction?

SOLUTION:

ANSWER: 17.0o

Section 1 Refraction of Light: Review

7. Index of Refraction A ray of light in air has an angle of incidence of 30.0° on a block of unknown material and an angle of refraction of 20.0°, as shown in Figure 10. What is the index of refraction of the material?

SOLUTION:

ANSWER: eSolutions1.46Manual - Powered by Cognero Page 2

9. Speed of Light What is the speed of light in chloroform (n = 1.51)?

SOLUTION:

ANSWER: 1.99×108 m/s

Chapter Assessment Section 1 Refraction of Light: Mastering Concepts

37. How does the angle of incidence compare with the angle of refraction when a light ray passes from air into glass at a nonzero angle?

SOLUTION: The angle of incidence is larger than the angle of refraction, because air has a smaller index of refraction.

ANSWER: The angle of incidence is larger than the angle of refraction, because air has a smaller index of refraction.

38. How does the angle of incidence compare with the angle of refraction when a light ray leaves glass and enters air at a nonzero angle?

SOLUTION: The angle of incidence is smaller than the angle of refraction, because glass has a larger index of refraction.

ANSWER: The angle of incidence is smaller than the angle of refraction, because glass has a larger index of refraction.

40. Ranking Task Figure 29 depicts a ray of light traveling from air into several mediums. Rank the mediums according to index of refraction from greatest to least. Specifically indicate any ties.

SOLUTION: C > D > B > A

ANSWER: C > D > B > A

Section 1 Refraction of Light: Practice Problems

1. A laser beam in air enters ethanol at an angle of incidence of 37.0°. What is the angle of refraction?

SOLUTION:

ANSWER: 26.3o

2. As light travels from air into water, the angle of refraction is 25.0° to the normal. Find the angle of incidence.

SOLUTION:

ANSWER: 34.2o

3. Light in air enters a diamond facet at 45.0°. What is the angle of refraction?

SOLUTION:

ANSWER: o Chapter17.0 18 Practice Problems, Review, and Assessment

Section 1 Refraction of Light: Review

7. Index of Refraction A ray of light in air has an angle of incidence of 30.0° on a block of unknown material and an angle of refraction of 20.0°, as shown in Figure 10. What is the index of refraction of the material?

SOLUTION:

ANSWER: 1.46

9. Speed of Light What is the speed of light in chloroform (n = 1.51)?

SOLUTION:

eSolutionsANSWER: Manual - Powered by Cognero Page 3 1.99×108 m/s

Chapter Assessment Section 1 Refraction of Light: Mastering Concepts

37. How does the angle of incidence compare with the angle of refraction when a light ray passes from air into glass at a nonzero angle?

SOLUTION: The angle of incidence is larger than the angle of refraction, because air has a smaller index of refraction.

ANSWER: The angle of incidence is larger than the angle of refraction, because air has a smaller index of refraction.

38. How does the angle of incidence compare with the angle of refraction when a light ray leaves glass and enters air at a nonzero angle?

SOLUTION: The angle of incidence is smaller than the angle of refraction, because glass has a larger index of refraction.

ANSWER: The angle of incidence is smaller than the angle of refraction, because glass has a larger index of refraction.

40. Ranking Task Figure 29 depicts a ray of light traveling from air into several mediums. Rank the mediums according to index of refraction from greatest to least. Specifically indicate any ties.

SOLUTION: C > D > B > A

ANSWER: C > D > B > A

Section 1 Refraction of Light: Practice Problems

1. A laser beam in air enters ethanol at an angle of incidence of 37.0°. What is the angle of refraction?

SOLUTION:

ANSWER: 26.3o

2. As light travels from air into water, the angle of refraction is 25.0° to the normal. Find the angle of incidence.

SOLUTION:

ANSWER: 34.2o

3. Light in air enters a diamond facet at 45.0°. What is the angle of refraction?

SOLUTION:

ANSWER: 17.0o

Section 1 Refraction of Light: Review

7. Index of Refraction A ray of light in air has an angle of incidence of 30.0° on a block of unknown material and an angle of refraction of 20.0°, as shown in Figure 10. What is the index of refraction of the material?

SOLUTION:

ANSWER: 1.46 Chapter 18 Practice Problems, Review, and Assessment

9. Speed of Light What is the speed of light in chloroform (n = 1.51)?

SOLUTION:

ANSWER: 1.99×108 m/s

Chapter Assessment Section 1 Refraction of Light: Mastering Concepts

37. How does the angle of incidence compare with the angle of refraction when a light ray passes from air into glass at a nonzero angle?

SOLUTION: The angle of incidence is larger than the angle of refraction, because air has a smaller index of refraction.

ANSWER: The angle of incidence is larger than the angle of refraction, because air has a smaller index of refraction.

38. How does the angle of incidence compare with the angle of refraction when a light ray leaves glass and enters air at a nonzero angle?

SOLUTION: The angle of incidence is smaller than the angle of refraction, because glass has a larger index of refraction.

ANSWER: The angle of incidence is smaller than the angle of refraction, because glass has a larger index of refraction.

40. Ranking Task Figure 29 depicts a ray of light traveling from air into several mediums. Rank the mediums according to index of refraction from greatest to least. Specifically indicate any ties.

eSolutions Manual - Powered by Cognero Page 4

SOLUTION: C > D > B > A

ANSWER: C > D > B > A

Section 1 Refraction of Light: Practice Problems

1. A laser beam in air enters ethanol at an angle of incidence of 37.0°. What is the angle of refraction?

SOLUTION:

ANSWER: 26.3o

2. As light travels from air into water, the angle of refraction is 25.0° to the normal. Find the angle of incidence.

SOLUTION:

ANSWER: 34.2o

3. Light in air enters a diamond facet at 45.0°. What is the angle of refraction?

SOLUTION:

ANSWER: 17.0o

Section 1 Refraction of Light: Review

7. Index of Refraction A ray of light in air has an angle of incidence of 30.0° on a block of unknown material and an angle of refraction of 20.0°, as shown in Figure 10. What is the index of refraction of the material?

SOLUTION:

ANSWER: 1.46

9. Speed of Light What is the speed of light in chloroform (n = 1.51)?

SOLUTION:

ANSWER: 1.99×108 m/s

Chapter Assessment Section 1 Refraction of Light: Mastering Concepts

37. How does the angle of incidence compare with the angle of refraction when a light ray passes from air into glass at a nonzero angle?

SOLUTION: The angle of incidence is larger than the angle of refraction, because air has a smaller index of refraction.

ANSWER: The angle of incidence is larger than the angle of refraction, because air has a smaller index of refraction.

38. How does the angle of incidence compare with the angle of refraction when a light ray leaves glass and enters air at a nonzero angle?

SOLUTION: The angle of incidence is smaller than the angle of refraction, because glass has a larger index of refraction.

ANSWER: The angle of incidence is smaller than the angle of refraction, because glass has a larger index of Chapterrefraction. 18 Practice Problems, Review, and Assessment

40. Ranking Task Figure 29 depicts a ray of light traveling from air into several mediums. Rank the mediums according to index of refraction from greatest to least. Specifically indicate any ties.

SOLUTION: C > D > B > A

ANSWER: C > D > B > A

eSolutions Manual - Powered by Cognero Page 5