College Physics
2nd Edition
ISBN: 9780134601823
Author: ETKINA, Eugenia, Planinšič, G. (gorazd), Van Heuvelen, Alan
Publisher: Pearson,
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Textbook Question
Chapter 22, Problem 48P
A light ray is incident on a flat piece of glass. The angle of incidence is
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Light in a vacuum is incident on a transparent glass slab. The angle of incidence is 35.2º. The slab is then immersed in a pool of liquid.
When the angle of incidence for the light striking the slab is 20.9°, the angle of refraction for the light entering the slab is the same as
when the slab was in a vacuum. What is the index of refraction of the liquid?
Number i
Units
A scuba diver training in a pool looks at his instructor as shown in the figure on the next page. The index of refraction of water is 1.33.a. What angle does the ray from the instructor’s face make with the perpendicular to the water surface at the point where the ray enters? The angle between the ray in the water and the perpendicular to the water surface is 25.0°. b. Find the height of the instructor’s head above the water. c. How much time does it take light to travel from the scuba diver to the instructor’s head? d. Find the apparent depth of the diver’s head below water as seen by the instructor.
A liquid-air interface has a critical angle for total internal reflection of 44.3°.
We assume nair =
1.00.
a. Determine the index of refraction of the liquid.
b. If a ray of light traveling in the liquid has an angle of incidence at the interface of 34.7°, what angle
does the refracted ray in the air make with the normal?
c. If a ray of light traveling in air has an angle of incidence at the interface of 34.7°, what angle does
the refracted ray in the liquid make with the normal?
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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- A light ray travels from vacuum into a slab of material with index of refraction n1 at incident angle θ with respect to the surface. It subsequently passes into a second slab of material with index of refraction n2 before passing back into vacuum again. The surfaces of the different materials are all parallel to one another. As the light exits the second slab, what can be said of the final angle ϕ that the outgoing light makes with the normal? (a) ϕ > θ (b) ϕ < θ (c) ϕ = θ (d) The angle depends on the magnitudes of n1 and n2. (e) The angle depends on the wavelength of the light.arrow_forward(a) Using information in the preceding problem, find the height of the instructor’s head above the water, noting that you will first have to calculate the angle of incidence. (b) Find the apparent depth of the diver’s head below water as seen by the instructor.arrow_forwardUnpolarized light in vacuum is incident onto a sheet of glass with index of refraction n. The reflected and refracted rays are perpendicular to each other. Find the angle of incidence. This angle is called Brewsters angle or the polarizing angle. In this situation, the reflected light is linearly polarized, with its electric field restricted to be perpendicular to the plane containing the rays and the normal.arrow_forward
- A light beam is traveling through an unknown substance. When it strikes a boundary between that substance and the air (nair 1), the angle of reflection is 33.0° and the angle of refraction is 47.0°. What is the index of refraction n of the substance? n =arrow_forwardSuppose you have an unknown clear substance immersed in water, and you wish to identify it by finding its index of refraction. You arrange to have a beam of light enter it at an angle of 45.0° with respect to the normal, and you observe the angle of refraction to be 40.3°. A. What is the index of refraction of the substance? B. What is its likely identity?arrow_forwardA beam of light passes from glass with refractive index 1.58 into water with a refractive index 1.33. The angle of the refracted ray in water is 58.0o . a) Draw a sketch of the situation showing the interface between the media, the normal line, the incident ray, the reflected ray, the refracted ray, and the angles of these rays relative to the normal line. b) Calculate the angle of incidence in the glass. Explainarrow_forward
- A beam of light traveling through a liquid (of index of refraction n1 = 1.4) is incident on a surface at an angle of θ1 = 45° with respect to the normal to the surface. It passes into the second medium and refracts at an angle of θ2 = 69.5° with respect to the normal. A. What is the index of refraction of the second material? B. What is the light's velocity in medium 1, in meters per second? C. What is the light's velocity in medium 2, in meters per second?arrow_forwardThe drawing shows a rectangular block of glass (n = 1.52) surrounded by a liquid with n = 1.56. A ray of light is incident on the glass at point A with a 30.0° angle of incidence. At what angle does the ray leave the glass at point B? 30.0° Number i A B eTextbook and Media Unitsarrow_forwardA ray of light in air is approaching the boundary with a layer of crown glass at an angle of 42.0 degrees. Determine the angle of refraction of the light ray upon entering the crown glass and upon leaving the crown glass. n_air = 1.0003 n_crown = 1.52arrow_forward
- = 48° with the A light ray in glass arrives at the glass-water interface an angle of normal. The refracted ray in water makes an angle = 72° angle with the normal, as shown in the figure. The index of refraction of water is 1.33. a) What is the index of refraction of glass? b) What is the maximum angle of incidence from glass that one can observe refraction light in water? c) What is the angle of incidence from glass when the reflected light in glass is linearly polarized? water glass Xarrow_forwardA beam of light is incident upon a stack of four flat transparent materials with indices of refraction of n1 =1.8, n2 =1.5 , n3 =1.3 , and n4 =1.2, see figure. a. If θ1 is 29o, what angle θ2 does the beam make to the normal when in emerges into the air after passing through the entire stack? b. What must the incident angle θ1 be to have total internal reflection at the surface between medium n4 and n?arrow_forwardA layer of oil (n = 1.45) floats on an unknown liquid. A ray of light originates in the oil and passes into the unknown liquid. The angle of incidence is 54.7 degrees, and the angle of refraction is 54.0 degrees. What is the index of refraction of the unknown liquid? Number i Unitsarrow_forward
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