College Physics
2nd Edition
ISBN: 9780134601823
Author: ETKINA, Eugenia, Planinšič, G. (gorazd), Van Heuvelen, Alan
Publisher: Pearson,
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Question
Chapter 22, Problem 5MCQ
To determine
The correct definition of a semi-shadow from the provided choices:
a. A shadow that is half the size of the original shadow.
b. A place where some light rays from an object reach while rays from other parts of the object do not.
c. A scientific term for a shadow.
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Students have asked these similar questions
You left a glass full of homogenized milk on a table undisturbed for half an hour. What would result if you shined a laser beam against the side of the glass?
a. The beam of light will be reflected back to its original source.
b. A path of light will be visible from one side of the glass.
c. The beam of light will not be reflected nor will it be visible.
d. No light will pass through the two side of the glass.
When light passes between two different media (i.e. oil and water), and the index of refraction of the second object is higher than the first object, the light will _______________.
a.
bend towards the boundary between the two surfaces.
b.
curve downwards with the force of gravity.
c.
curve until it circles back to the original medium.
d.
bend towards the line that runs normal (aka perpendicular) to the boundary between the two surfaces.
6. Regular reflection is the reflection of all light rays at the same
from a completely
surface
7. Diffused reflection is the spreading out in all
of waves reflected at various
from an
surface.
8. A flat mirror reflects an image from the point of view of someone
the glass.
or
9. Why are convex mirrors often placed at corners?
10.The
image of a concave mirror is focused in
of the mirror, not
it like a virtual image.
E light
light to
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 4.00-m-long pole stands vertically in a freshwater lake having a depth of 2.00 m. The Sun is 40.0 above the horizontal. Determine the length of the poles shadow on the bottom of the lake.arrow_forward14. A ray of light strikes the midpoint of one face of an equiangular (60°−60°−60°) glass prism (n = 1.5) at an angle of incidence of 30°. (a) Trace the path of the light ray through the glass and find the angles of incidence and refraction at each surface. (b) If a small fraction of light is also reflected at each surface, what are the angles of reflection at the surfaces?arrow_forwardA 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_forward
- (a) Under what conditions is a mirage formed? While driving on a hot day, sometimes you see what appears to be water on the road far ahead. When you arrive at the location of the water, however, the road is perfectly dry. Explain this phenomenon, (b) The mirage called fata morgana often occurs over water or in cold regions covered with snow or ice. It can cause islands to sometimes become visible, even though they are not normally visible because they are below the horizon due to the curvature of the Earth. Explain this phenomenon.arrow_forwardAn opaque cylindrical tank with an open top has a diameter of 3.00 m and is completely filled with water. When the afternoon Sun reaches an angle of 28.0 above the horizon, sunlight ceases to illuminate the bottom of the tank. How deep is the tank?arrow_forward6. The diagram shows a light wave passing through the air toward an opaque piece of glass. Which statement best describes what will happen to the wave as it strikes the glass?A. It will refract and bend away from the normal.B. It will reflect at an angle perpendicular to the glass.C. It will continue passing through the glass in its original path.D. It will reflect at an angle that is equal to the angle of incidence.arrow_forward
- 1. The of light can change when light is refracted because the medium changes. A. frequency 1 Pt B. color ABc E D C. speed D. transparency 2. Light is not refracted when it is A. traveling from air into a glass of water at an angle of 35° to the normal. B. traveling from water into air at an angle of 35° to the normal. 1 Pt C. striking a wood surface at an angle of 75°. D. traveling from air into a diamond at an angle of 45°. A B E 3. When light passes at an angle to the normal from one material into another material in which its speed is higher, A. it is bent toward the normal to the surface. 1Pt B. it always lies along the normal to the surface. C.itis unaffected. D. it is bent away from the normal to the surface. A B D Earrow_forwardThe direction that a light wave bends once it enters the refracted medium depends on a. The index of refraction of the incident medium only. b. The indices of refraction of both the incident and refracted media. C. The angle of incidence of the incident light ray only. d. The index of refraction of the refracted medium, only.arrow_forwardA ray of light strikes a medium with a refractive index 1.5. Part of it is reflected (angle of reflection is theta) and part is refracted (angle of refraction is phi). Then a. theta < phi b. theta > phi c. theta = 3 X phi d. theta = phi e. theta = 1.5 X phiarrow_forward
- The higher the index of refraction of a medium, * A. the higher its critical angle. B. slower light moves in the medium. C. the faster light moves in the medium. D. the higher the chances of total internal reflection.arrow_forwardAs shown in the right figure, two refractive indices between a spherical surface are n1 > n2. What happens when a parallel light beam crosses this spherical surface? A. It becomes a converging beam. B. It becomes a diverging beam. C. It remains a parallel beam. D. It is totally reflected.arrow_forwardA ray of light passes from medium A to medium B. If the angle of incidence is 30° and the angle of refraction is 38°, which of the following statements is TRUE? A. The index of refraction of A is greater than the index of refraction of B. B. The index of refraction of A is lower than the index of refraction of B. C. A and B have equal indices of refraction. D. It cannot be determined unless at least one index of refraction was given. E. It cannot be determined unless the types of material of the two media were given.arrow_forward
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