College Physics
10th Edition
ISBN: 9781285737027
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Chapter 22, Problem 10CQ
Light in medium A undergoes a total internal reflection as it reaches the interface with medium B. Which of the following statements must be true (choose all that apply)? (a) nB < nA (b) nB > nA (c) All light rays that undergo a total internal reflection travel along the interface between the two materials. (d) Light traveling in the opposite direction, from B into A, cannot undergo a total internal reflection.
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Light in medium A undergoes a total internal reflection as itreaches the interface with medium B. Which of the followingstatements must be true (choose all that apply)? (a) nB < nA(b) nB >nA (c) All light rays that undergo a total internalreflection travel along the interface between the two materials.(d) Light traveling in the opposite direction, from B intoA, cannot undergo a total internal reflection.
Consider a layer of Oil, Glass, and Air where the oil/glass boundary is parallel to the glass/air boundary. Let the index of refraction for the glass be 1.55 and the index of refraction for the oil to be 1.31. At what angle relative to the normal should a ray of light be directed upon the oil/glass interface such that it strikes the glass/air interface at the critical angle?
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Chapter 22 Solutions
College Physics
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- Consider a beam of light traveling from a medium with a low index of refraction, n1 , to a new medium with a higher index of refraction, n2. (a) Will total internal reflection be possible in this situation? (b) If so, describe the conditions necessary for it to occur; if not, explain why not.arrow_forwardAs shown below, light from a vacuum is incident on a shard of Shawtonium (a newly discovered compound). The backside of the shard is up against an unknown material. When the light strikes the backside of the shard, total internal reflection occurs. The light then emerges from the side of the shard and resumes traveling through a vacuum. The index of refraction of Shawtonium is 3.3. Determine the speed of light in Shawtonium, 0, & the upper bound of nunknown: Vshawtonium = upper bound of nunknown = vacuum 62.66 ° 37.5° shard unknownarrow_forwardLet v be the wave's speed, λ its wavelength, and f its frequency. These quantities are related via the equation v=λf. Note that, if the wave speed decreases, the wavelength must also decrease for the frequency to remain constant. What is the wavelength λ of light in glass, if its wavelength in air is λ0, its speed in air is c, and its speed in the glass is v? Express your answer in terms of λ0, c, and v. If light strikes the air/glass interface at an angle 32.0 degrees to the normal, what is the angle of reflection, θr?arrow_forward
- The critical angle for total internal reflection at a liquid–air interface is 42.5 . (a) If a ray of light traveling in the liquid has an angle of incidence at the interface of 35.0 , what angle does the refracted ray in the air make with the normal? (b) If a ray of light traveling in air has an angle of incidence at the interface of 35.0 , what angle does the refracted ray in the liquid make with the normal?arrow_forwardA parallel sided plate of glass with an index of refraction of 1.60 is in contact with the surface of water (n=1.33) in a tank. A ray coming from above makes an angle of incidence of 30.0° with the normal to the top surface of the glass plate. (a) What is the speed of light in the glass plate? (b) What is the critical angle between the glass and the water? (c) What angle does this ray make with the normal in the water? (d) Include a diagram of the situation. [Diagram 3 pts.]arrow_forwardIn the figure, light from ray A refracts from material 1 (n1 = 1.60) into a thin layer of material 2 (n2 = 1.80), crosses that layer, and is then incident at the critical angle on the interface between materials 2 and 3 (n3 = 1.3). (a) What is the value of incident angle θA? (b) If θA is decreased, does part of the light refract into material 3? Light from ray B refracts from material 1 into the thin layer, crosses that layer, and is then incident at the critical angle on the interface between materials 2 and 3. (c) What is the value of incident angle θB? (d) If θB is decreased, does part of the light refract into material 3?arrow_forward
- A ray is traveling in material a when it reaches an interface with material b, where n < na. If the critical angle for total internal reflection at this interface is erit = 30.0°, what is the ratio of the speed of light in material a to the speed of light in material b, va/v6? O 1.6 O 0.50 O 0.25 O 1.0 O o o oarrow_forwardIn the figure, light from ray A refracts from material 1 (n₁ = 1.73) into a thin layer of material 2 (n2 = 1.80), crosses that layer, and is then incident at the critical angle on the interface between materials 2 and 3 (n3 = 1.40). (a) What is the value of incident angle BA? (b) If 8A is decreased, does part of the light refract into material 3? Light from ray B refracts from material 1 into the thin layer, crosses that layer, and is then incident at the critical angle on the interface between materials 2 and 3. (c) What is the value of incident angle Og? (d) If Og is decreased, does part of the light refract into material 3? OB I ng no 121arrow_forward(a) In the figure, light from ray A refracts from material 1 into a thin layer of material 2, crosses that layer, and is then incident at the critical angle on the interface between materials 2 and 3. (i) What is the value of incident angle θA? Draw a sketch of the situation. (ii) If θA is decreased, does part of the light refract into material 3? (b) Light from ray B refracts from material 1 into the thin layer, crosses that layer, and is then incident at the critical angle on the interface between materials 2 and 3. (iii) What is the value of incident angle θB? Draw a sketch of the situation. (iv) If θB is decreased, does part of the light refract into material 3? Answer: 54.3°, yes, 51.1°, noarrow_forward
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