College Physics
2nd Edition
ISBN: 9780134601823
Author: ETKINA, Eugenia, Planinšič, G. (gorazd), Van Heuvelen, Alan
Publisher: Pearson,
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Chapter 22, Problem 4RQ
Review Question 22.4 Why did we study total internal reflection after our investigation of refraction and not after reflection?
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A drop of unknown liquid sits on top of a glass surface and Nglass = 1.57. If total internal reflection occurs at the boundary between the glass and the liquid with a critical angle of 53ﾟ what is a refractive index of the liquid?
A. 2.65
B. .935
C. 1.25
D. 1.97
E. 1.57
Rainbow is produced when sunlight fall on drops of rain. Which of the following physical phenomena are responsible for this?
Diffusion
Refraction
Internal reflection
A. I, II and III
B. I and II
C. II and III
D. I and III
33.) What is the main cause of mirages?
a. Light diffracts through the opening in human eyes
b. Light waves are refracted as they pass through air of different densities
c. the normally diffuse scattering of light becomes focused due to the index of refraction of the medium
d. the temperature changes in the layers of air cause the light to bend around edges of the actual object
Chapter 22 Solutions
College Physics
Ch. 22 - Prob. 1RQCh. 22 - Review Question 22.2 How can we test the law of...Ch. 22 - Review Question 22.3 Why is the expression light...Ch. 22 -
Review Question 22.4 Why did we study total...Ch. 22 - Review Question 22.5 What is the critical angle...Ch. 22 - Review Question 22.6 Why is the sky blue? Why are...Ch. 22 - Prob. 7RQCh. 22 - 1. How can you convince your friend that a beam of...Ch. 22 - 2. Each point of a light-emitting object
a. sends...Ch. 22 - What is a light ray? a. A thin beam of light b. A...
Ch. 22 - Prob. 5MCQCh. 22 - You fix a point-like light source 3.0m away from a...Ch. 22 - Prob. 7MCQCh. 22 - A light ray travels through air and then passes...Ch. 22 - 9. A right triangular prism sits on a base A...Ch. 22 - 10. A laser beam travels through oil in a...Ch. 22 - Prob. 11MCQCh. 22 - Prob. 12MCQCh. 22 - What effects of light radiation and reflection are...Ch. 22 - Prob. 14CQCh. 22 - Prob. 15CQCh. 22 - Explain how a sundial works (a sundial is just a...Ch. 22 - Prob. 17CQCh. 22 - Prob. 18CQCh. 22 - Prob. 19CQCh. 22 - Prob. 20CQCh. 22 - Prob. 21CQCh. 22 - The visible diameters of the Moon and the Sun are...Ch. 22 - The shadow of the Moon on Earth is 200 km wide....Ch. 22 - Prob. 24CQCh. 22 - 25. During the day, you can see the trees in your...Ch. 22 - 26. You look at a fish underwater Draw a ray...Ch. 22 - 27. Take a pencil and try to touch a penny on the...Ch. 22 - 28. Will a beam of light experience total internal...Ch. 22 - Prob. 29CQCh. 22 - Prob. 30CQCh. 22 - Prob. 31CQCh. 22 - Prob. 32CQCh. 22 - 33. What phenomena can be explained using a wave...Ch. 22 - How is it possible that two different models can...Ch. 22 - Oliver has finished building a wall in a house. He...Ch. 22 - Tree height You are standing under a tree. The...Ch. 22 - Lunar eclipse A lunar eclipse happens when the...Ch. 22 - * Shadows during romantic dinner You and a friend...Ch. 22 - * Pinhole camera (camera obscura) You want to make...Ch. 22 - 6. * Solar eclipse Only observers in a very narrow...Ch. 22 - Prob. 7PCh. 22 - An extended light source can be modeled as a group...Ch. 22 - * You have a small mirror. While holding the...Ch. 22 - Prob. 11PCh. 22 - 12. Design a mirror arrangement so that light from...Ch. 22 - Two mirrors are oriented at right angles. A narrow...Ch. 22 - Prob. 14PCh. 22 - A flat mirror is rotated 17 about an axis in the...Ch. 22 - (a) A laser beam passes from air into a 25 glucose...Ch. 22 - 17. A beam of light passes from glass with...Ch. 22 - A beam of light passes from air into a transparent...Ch. 22 - 19. * Moving laser beam An aquarium open at the...Ch. 22 - **Lifting light You have a V-shaped transparent...Ch. 22 - Prob. 21PCh. 22 - Prob. 22PCh. 22 - 23. * BIO Vitreous humor Behind the lens of the...Ch. 22 - Prob. 24PCh. 22 - * Light moving up and toward the right in air...Ch. 22 - * A laser beam is incident at 30 with respect to...Ch. 22 - * Can your light be seen? You swim under water at...Ch. 22 - * Light is incident on the boundary between two...Ch. 22 - 29. Diamond total reflection Determine the...Ch. 22 - Determine the refractive index of a glucose...Ch. 22 - * You wish to use a prism to change the direction...Ch. 22 - * You aim a laser beam (in air) at 80.0 with...Ch. 22 - 33. * Prism total reflection What must be the...Ch. 22 - Gems and critical angles In gemology, two of the...Ch. 22 - (a) The refractive index for the gem aquamarine is...Ch. 22 - 36. * You have three transparent media with...Ch. 22 - 37. (a) Rays of light are incident on a glass-air...Ch. 22 - 42. ** When reaching a boundary between two media,...Ch. 22 - 43. * A laser beam travels from air (n = 1.00)...Ch. 22 - . You sit on a raft and want to orient a mirror so...Ch. 22 - 45. ** Rain sensor Many cars today are equipped...Ch. 22 - Prob. 46PCh. 22 - Prob. 47PCh. 22 - 48. A light ray is incident on a flat piece of...Ch. 22 - 49. * Prism You have a triangular prism made of...Ch. 22 - * You have a candle and a large piece of paper...Ch. 22 - 52. * You place a point-like source of light at...Ch. 22 - 53. ** There is a light pole on one bank of a...Ch. 22 - 54. ** Coated optic fiber An optic fiber of...Ch. 22 - relative to the normal, hits the mirror, reflects,...Ch. 22 - 56. ** A scuba diver stands at the bottom of a...Ch. 22 - Prob. 57RPPCh. 22 - Rainbows How is a rainbow formed? Recall that the...Ch. 22 - Rainbows How is a rainbow formed? Recall that the...Ch. 22 - Prob. 60RPPCh. 22 - Prob. 61RPPCh. 22 - Rainbows How is a rainbow formed? Recall that the...Ch. 22 - Prob. 63RPPCh. 22 - Prob. 64RPPCh. 22 - Rainbows How is a rainbow formed? Recall that the...Ch. 22 - Prob. 66RPPCh. 22 - Prob. 67RPPCh. 22 - Prob. 68RPP
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- 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.arrow_forwardHow can you use total internal reflection to estimate the index of refraction of a medium?arrow_forwardA periscope (Fig. P23.5) is useful for viewing objects that cannot be seen directly. It can be used in submarines and when watching golf matches or parades from behind a crowd of people. Suppose the object is a distance p from the upper mirror and the renters of the two fat mirrors air separated by a distance h. (a) What is the distance of the final image from the lower mirror? (b) Is the final image real or virtual? (c) Is it upright or inverted? (d) What is its magnification? (e) Does it appear to be left-right reversed? Figure P23.5arrow_forward
- The level of water in a clear, colorless glass can easily be observed with the naked eye. The level of liquid helium in a clear glass vessel is extremely difficult to see with the naked eye. Explain. Hint: The index of refraction of liquid helium is close to that of air.arrow_forwardA type of mirage called a pingo is often observed in Alaska. Pingos occur when the light from a small hill passes to an observer by a path that takes the light over a body of water warmer than the air. What is seen is the hill and an inverted image directly below it. Explain how these mirages are formed.arrow_forwardYou are working for a solar energy company. Your supervisor has asked you to investigate a new idea that has been proposed for a solar collector. A large sphere of glass focuses light on photocells, as shown in Figure P35.22. The photocells are moved by electronics along the curved track to the right of the sphere. Your supervisor would like to build a prototype of a material with index of refraction n, but needs for you to calculate the position at which the Suns rays focus and, therefore, to find where to locale the curved track. Figure P35.22arrow_forward
- A ray of light is incident at an angle 30.0 on a plane slab of flint glass surrounded by water. (a) Find the refraction angle. (b) Suppose the index of refraction of the surrounding medium can be adjusted, but the incident angle of the light remains the same. As the index of refraction of the medium approaches that of the glass, what happens to the refraction angle? (c) What happens to the refraction angle when the mediums index of refraction exceeds that of the glass?arrow_forwardA Fermats principle of least time for refraction. A ray of light traveling in a medium with speed v1 leaves point A and strikes the boundary between the incident and transmitted media a horizontal distance x from point A as shown in Figure P38.98. The refracted ray travels with speed v2 in the second medium, eventually reaching point B. The horizontal distance between points A and B is L. a. Calculate the time t required for the light to travel from A to B in terms of the parameters labeled in the figure. b. Now take the derivative of t with respect to x. What is the condition for which the ray of light will take the shortest time to travel from A to B? Figure P38.98arrow_forwardEndoscopes are medical instruments used to examine the gastrointestinal tract and other cavities inside the body. The light required for examination is conducted from an outside source along a long, flexible bundle of optical fibers to the tip, where it exits and illuminates the internal cavity. A lens on the lip collects an image of the lighted cavity and another fiber bundle conducts the image back along the endoscope to an eyepiece for viewing (Fig. P22.52). If each fiber in the bundle has diameter d = 1.00 104 m and refractive index n = 1.40, find the smallest outside radius R permitted for a bend in the fiber if no light is to escape. Figure P22.52arrow_forward
- Diffusion by reflection from a rough surface is described in this chapter. Light can also be diffused by refraction. Describe how this occurs in a speci?c situation, such as light interacting with crushed ice.arrow_forwardA ray of light travels from air into another medium, making an angle of 1 = 45.0 with the normal as in Figure P22.7. Find the angle of refraction 2 if the second medium is (a) fused quartz, (b) carbon disulfide, and (c) water.arrow_forwardWhy is your vision so blurry when you open your eyes while swimming under water? How does a face mask enable clear vision?arrow_forward
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Laws of Refraction of Light | Don't Memorise; Author: Don't Memorise;https://www.youtube.com/watch?v=4l2thi5_84o;License: Standard YouTube License, CC-BY