College Physics
2nd Edition
ISBN: 9780134601823
Author: ETKINA, Eugenia, Planinšič, G. (gorazd), Van Heuvelen, Alan
Publisher: Pearson,
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 23, Problem 25CQ
In a video projector, the picture that appears on a small liquid-crystal display is projected onto a screen The lens of the video projector is adjusted so that a clear image on the display is formed on a screen. If the screen is moved farther away, must the lens be moved toward or away from the display? Explain.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionChapter 23 Solutions
College Physics
Ch. 23 - Review Question 23.1 A mirror is hanging on a...Ch. 23 - Review Question 23.2 You've found a concave...Ch. 23 - Review Question 23.3 You place a concave mirror on...Ch. 23 - Review Question 23.5 Where should you place an...Ch. 23 - Review Question 23.6 If we have a mathematical...Ch. 23 - Review Question 23.7 What is the main difference...Ch. 23 - Review Question 23.8 If a person with normal...Ch. 23 - Review Question 23.9 Why is saying that a...Ch. 23 - Where does the image of an object in a plane...Ch. 23 - Where does the image of an object that is s meters...
Ch. 23 - 3. A plane mirror produces an image of an object...Ch. 23 - A concave mirror can produce an image that is...Ch. 23 - 5. A convex mirror can produce an image that is...Ch. 23 - 6. A virtual image is the image produced
a. on as...Ch. 23 - 7. To see an image of an object that is enlarged,...Ch. 23 - To see an image of an object that is enlarged,...Ch. 23 - Prob. 9MCQCh. 23 - 10. When drawing images of objects produced by...Ch. 23 - 11. The focal length of a glass lens is 10 cm....Ch. 23 - 12. A microbiologist uses a microscope to look at...Ch. 23 - 13. The human eye works in a similar way to which...Ch. 23 - Which of the following changes will result in a...Ch. 23 - When we draw a ray passing through the center of a...Ch. 23 - 16. You run toward a building with walls of a...Ch. 23 - 17. A tiny plane mirror can produce an image...Ch. 23 - Explain how we derived the mirror equation.Ch. 23 - 19. Explain how we derived the thin lens...Ch. 23 - Explain the difference between a real and a...Ch. 23 - You stand in front of a fun house mirror. You see...Ch. 23 - 22. A bubble of air is suspended underwater. Draw...Ch. 23 - 23. A bubble of oil is suspended in water. Draw...Ch. 23 - A typical person underwater cannot focus clearly...Ch. 23 - In a video projector, the picture that appears on...Ch. 23 - The retina has a blind spot at the place where the...Ch. 23 - You need to teach your friend how to draw rays to...Ch. 23 - Place a pencil in front of a plane mirror so that...Ch. 23 - 3.* Use geometry to prove that the virtual image...Ch. 23 - * You are 1.8 m tall. Where should you place the...Ch. 23 - 5. * Two people are standing in front of a...Ch. 23 - 6. * Test an idea Describe an experiment that you...Ch. 23 - * Describe in detail an experiment to find the...Ch. 23 - * Explain with a ray diagram how (a) a concave...Ch. 23 - 9. * Test an idea Describe an experiment to test...Ch. 23 - * Test an idea Describe an experiment to test the...Ch. 23 - 11. * Tablespoon mirror You look at yourself in...Ch. 23 - * Use ray diagrams and the mirror equation to...Ch. 23 - Repeat Problem 23.12 for a convex mirror of focal...Ch. 23 - 14. Use ray diagrams and the mirror equation to...Ch. 23 - 15. * Sinking ships A legend says that Archimedes...Ch. 23 - 16. * EST Fortune-teller A fortune-teller looks...Ch. 23 - * You view yourself in a large convex mirror of...Ch. 23 - * Seeing the Moon in a mirror The Moons diameter...Ch. 23 - 19. * You view your face in a +20-cm focal length...Ch. 23 - 20. * Buying a dental mirror A dentist wants to...Ch. 23 - * Using a dental mirror A dentist examines a tooth...Ch. 23 - * If you place a point-like light source on the...Ch. 23 - 24. * You have a convex lens and a candle....Ch. 23 - 25. * Explain how to draw ray diagrams to locate...Ch. 23 - * Draw ray diagrams to show how a convex lens can...Ch. 23 - 27. * Use a ruler to draw ray diagrams to locate...Ch. 23 - 28. * Repeat the procedure described in Problem...Ch. 23 - 29. * Repeat the procedure described in Problem...Ch. 23 - 30 * Repeat the procedure in Problem 23.27 for the...Ch. 23 - * Partially covering lens Your friend thinks that...Ch. 23 - * Use ray diagrams to locate the images of the...Ch. 23 - 33. *Use ray diagrams to locate the images of the...Ch. 23 - Light passes through a narrow slit, and then...Ch. 23 - * Describe two experiments that you can perform to...Ch. 23 - * Shaving/makeup mirror You wish to order a mirror...Ch. 23 - 37. Dentist lamps Dentists use special lamps that...Ch. 23 - 38. * A large concave mirror of focal length 3.0m...Ch. 23 - 39 * EST Two convex mirrors on the side of a van...Ch. 23 - Camera You are using a camera with a lens of focal...Ch. 23 - 42. * Camera A camera with an 8.0-cm focal length...Ch. 23 - Video projector An LCD video projector (LCD stands...Ch. 23 - Photo of carpenter ant You take a picture of a...Ch. 23 - * Photo of secret document A secret agent uses a...Ch. 23 - 46. * Photo of landscape To photograph a landscape...Ch. 23 - * Make a rough graph of image distance versus...Ch. 23 - * Make a rough graph of linear magnification...Ch. 23 - * Repeat Problem 23.48 for a concave lens of...Ch. 23 - BIO Eye The image distance for the lens of a...Ch. 23 - BIO Lens-retina distance Fish and amphibians...Ch. 23 - BIO Nearsighted and farsighted (a) A woman can...Ch. 23 - * BIO Prescribe glasses A man who can produce...Ch. 23 - 54. * BIO Correcting vision A woman who produces...Ch. 23 - 55. * BIO Where are the far and near points? (a) A...Ch. 23 - * BIO Age-related vision changes A 35-year-old...Ch. 23 - 5.7 Looking at an aphid You examine an aphid on a...Ch. 23 - 58. * Reading with a magnifying glass You examine...Ch. 23 - 59. * Seeing an image with a magnifying glass A...Ch. 23 - * Stamp collector A stamp collector is viewing a...Ch. 23 - * You place a +20-cm focal length convex lens at a...Ch. 23 - 62. * You place a +25-cm focal length convex lens...Ch. 23 - * EST You place a candle 10 cm in front of a...Ch. 23 - 64. * EST Repeat Problem 23.63 for an object...Ch. 23 - ** You measure the focal length of a concave lens...Ch. 23 - 66.** Telescope A telescope consists of a +4.0-cm...Ch. 23 - 67. ** Yerkes telescope The world’s largest...Ch. 23 - * Telescope A telescope consisting of a +3.0-cm...Ch. 23 - 69. *** Design a telescope You are marooned on a...Ch. 23 - * Microscope A microscope has a +0.50-cm objective...Ch. 23 - 71. ** BIO Dissecting microscope A dissecting...Ch. 23 - *** Microscope A microscope has an objective lens...Ch. 23 - 73. ** Microscope Determine the lens separation...Ch. 23 - * Figure P23.75 shows three cases of the primary...Ch. 23 - Prob. 78GPCh. 23 - ** Two-lens camera A two-lens camera (see Figure...Ch. 23 - **You have a small spherically shaped bottle made...Ch. 23 - BIO Find a farsighted person. Design an experiment...Ch. 23 - 82. BIO Find a nearsighted person. Design an...Ch. 23 - BIO Laser surgery for the eye LASIK...Ch. 23 - BIO Laser surgery for the eye LASIK...Ch. 23 - BIO Laser surgery for the eye LASIK...Ch. 23 - BIO Laser surgery for the eye LASIK...Ch. 23 - BIO Laser surgery for the eye LASIK...Ch. 23 - BIO Laser surgery for the eye LASIK...Ch. 23 - Prob. 89RPPCh. 23 - Prob. 90RPPCh. 23 - Prob. 91RPPCh. 23 - Prob. 92RPPCh. 23 - Prob. 93RPP
Additional Science Textbook Solutions
Find more solutions based on key concepts
Explain all answers clearly, with complete sentences and proper essay structure if needed. An asterisk (*) desi...
The Cosmic Perspective Fundamentals (2nd Edition)
Write each number in scientific notation.
4. 14,500
Applied Physics (11th Edition)
The CIA wants your help identifying individual terrorists in a photo of a training camp taken from a spy satell...
Essential University Physics: Volume 2 (3rd Edition)
1. How many known planets are in our solar system?
Conceptual Physical Science (6th Edition)
A motorist suddenly notices a stalled car and slams on the brakes, negatively accelerating at 6.3 m/s2. Unfortu...
Essential University Physics: Volume 1 (3rd Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- A converging lens in a vertical plane receives light from an object and forms an inverted image on a screen. An opaque card is then placed next to the lens, covering only the upper half of the lens. What happens to the image on the screen? (a) The upper half of the image disappears. (b) The lower half of the image disappears. (c) 'The entire image disappears, (d) The entire image is still visible, but is dimmer. (e) No change in the image occurs.arrow_forwardFigure P36.95 shows a thin converging lens for which the radii of curvature of its surfaces have magnitudes of 9.00 cm and 11.0 cm. The lens is in front of a concave spherical mirror with the radius of curvature R = 8.00 cm. Assume the focal points F1 and F2 of the lens are 5.00 cm from the center of the lens, (a) Determine the index of refraction of the lens material. The lens and mirror are 20.0 cm apart, and an object is placed 8.00 cm to the left of the lens. Determine (b) the position of the filial image and (c) its magnification as seen by the eye in the figure. (d) Is the final image inverted or upright? Explain.arrow_forwardFigure P22.16 shows a light ray traveling in a slab of crown glass surrounded by air. The ray is incident on the right surface at an angle of 55 with the normal and then reflects from points A. B, and C. (a) At which of these points does part of the ray enter the air? (b) If the glass slab is surrounded by carbon disulfide, at which point does part of the ray enter the carbon disulfide?arrow_forward
- Endoscopes 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_forwardWhich of the following is true of a concave lens? (7.4) (a) It is a converging lens. (b) It is thicker at the center than at the edge. (c) It is a lens that forms virtual images for Do f. (d) It is a lens that forms real images for Do f.arrow_forwardAn object is placed a distance of 10.0 cm to the left of a thin converging lens of focal length f = 8.00 cm, and a concave spherical mirror with radius of curvature +18.0 cm is placed a distance of 45.0 cm to the right of the lens (Fig. P38.129). a. What is the location of the final image formed by the lensmirror combination as seen by an observer positioned to the left of the object? b. What is the magnification of the final image as seen by an observer positioned to the left of the object? c. Is the final image formed by the lensmirror combination upright or inverted? FIGURE P38.129arrow_forward
- When you focus a camera, you adjust the distance of the lens from the film. If the camera lens acts like a thin lens, why can it not be a fixed distance from the film for both near and distant objects?arrow_forwardThe object in Figure P23.52 is mid-way between the lens and the mirror, which are separated by a distance d = 25.0 cm. The magnitude of the mirrors radius of curvature is 20.0 cm, and the lens has a focal length of 16.7 cm. (a) Considering only the light that leaves the object and travels first toward the mirror, locate the final image formed by this system. (b) Is the image real or virtual? (c) Is it upright or inverted? (d) What is the overall magnification of the image? Figure P23.52arrow_forwardIf a cylinder of solid glass or clear plastic is placed above the words LEAD OXIDE and viewed from the side, as shown in Figure CQ23.10, the word LEAD appears inverted, but the word OXIDE does not. Explain? Figure CQ23.10arrow_forward
- A leaf of length h is positioned 71.0 cm in front of a converging lens with a focal length of 39.0 cm. An observer views the image of the leaf from a position 1.26 in behind the lens, as shown in Figure P25.25. (a) What is the magnitude of the lateral magnification (the ratio of the image size to the object size) produced by the lens? (b) What angular magnification is achieved by viewing the image of the leaf rather than viewing the loaf directly? Figure P25.25arrow_forwardTwo lenses made of kinds of glass having different indices of refraction n1 and n2 are cemented together to form an optical doublet. Optical doublets are often used to correct chromatic aberrations in optical devices. The first lens of a certain doublet has index of refraction n1, one flat side, and one concave side with a radius of curvature of magnitude R. The second lens has index of refraction n2 and two convex sides with radii of curvature also of magnitude R. Show that the doublet can be modeled as a single thin lens with a focal length described by 1f=2n2n11Rarrow_forwardA person looking into an empty container is able to see the far edge of the containers bottom, as shown in Figure P22.23a. The height of the container is h, and its width is d. When the container is completely filled with a fluid of index of refraction n and viewed from the same angle, the person can see the center of a coin at the middle of the containers bottom, as shown in Figure P22.23b. (a) Show that the ratio h/d is given by hd=n214n2 (b) Assuming the container has a width of 8.00 cm and is filled with water, use the expression above to find the height of the container.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- College PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningCollege PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningPhysics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
- Physics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningUniversity Physics Volume 3PhysicsISBN:9781938168185Author:William Moebs, Jeff SannyPublisher:OpenStaxPhysics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
College Physics
Physics
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers with Modern ...
Physics
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
University Physics Volume 3
Physics
ISBN:9781938168185
Author:William Moebs, Jeff Sanny
Publisher:OpenStax
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
AP Physics 2 - Geometric Optics: Mirrors and Lenses - Intro Lesson; Author: N. German;https://www.youtube.com/watch?v=unT297HdZC0;License: Standard YouTube License, CC-BY