College Physics (10th Edition)
10th Edition
ISBN: 9780321902788
Author: Hugh D. Young, Philip W. Adams, Raymond Joseph Chastain
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 26, Problem 12CQ
Optical telescopes having a principal mirror only a few meters in diameter can produce extremely sharp images, yet radio telescopes need to be hundreds (or even thousands) of meters in diameter to make sharp images. Why do they need to be so much larger than optical telescopes?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
What is the limit of resolution for a telescope lens with a diameter of 120 cm when it observes a star at a distance of 4 light-years? Use the wavelength of l = 550 nm in your calculations.
The telescope of a spy satellite is reputed to be able to resolve objects 9 cm apart from an altitude of 180 km above the surface of Earth.
1) What is the diameter, in meters, of the telescope’s aperture, if its resolution is limited only by diffraction effects? Take 550 nm for the wavelength of light.
You are using a telescope is to resolve two distant stars as well as possible.
Which of the following modifications will increase the resolution of the telescope?
Question 8 options:
Use a filter to filter out all but the red light.
Use a filter to filter out all but the blue light.
Use a lens of smaller diameter
Use a lens of larger diameter
None of these modifications will impact the resolution of the telescope.
Chapter 26 Solutions
College Physics (10th Edition)
Ch. 26 - Could an experiment similar to Youngs two-slit...Ch. 26 - You shine monochromatic light on two narrow slits...Ch. 26 - Would the headlights of a distant car form a...Ch. 26 - If a two-slit interference experiment were done...Ch. 26 - Prob. 6CQCh. 26 - Prob. 7CQCh. 26 - Around harbors, where oil from boat engines is on...Ch. 26 - What happens to the width of the central bright...Ch. 26 - A very thin soap film (n = 1.33), whose thickness...Ch. 26 - Suppose monochromatic light with a wavelength A...
Ch. 26 - Optical telescopes having a principal mirror only...Ch. 26 - Two sources of waves are at A and B in Figure...Ch. 26 - Two sources of waves are at A and B in Figure...Ch. 26 - To obtain the greatest resolution from a...Ch. 26 - A monochromatic beam of laser light falls on a...Ch. 26 - When a thin oil film spreads out on a puddle...Ch. 26 - A laser beam of wavelength 500 nm is shone through...Ch. 26 - A film contains a single thin slit of width a When...Ch. 26 - Light of wavelength A strikes a pane of glass of...Ch. 26 - Two thin parallel slits are a distance d apart....Ch. 26 - Laser light of wavelength A passes through a thin...Ch. 26 - A light oeam st'ikes a pane of glass as shown in...Ch. 26 - Light of wavelength and frequency f passes...Ch. 26 - Prob. 1PCh. 26 - A person with a radio-wave receiver starts out...Ch. 26 - Radio interference. Two radio antennas A and B...Ch. 26 - Two speakers that are 10.0 m apart produce...Ch. 26 - Suppose that the situation is the same as in the...Ch. 26 - Coherent light of wavelength 525 nm passes through...Ch. 26 - Coherent light from a sodium-vapor lamp is passed...Ch. 26 - Young's experiment is performed with light of...Ch. 26 - Coherent light of frequency 6 32 1014 Hz passes...Ch. 26 - Coherent light with wavelength 600 nm passes...Ch. 26 - Two slits spaced 0.450 mm apart are placed 75.0 cm...Ch. 26 - Coherent light that contains two wavelengths 660...Ch. 26 - Two thin parallel slits that are 0.0116 mm apart...Ch. 26 - The walls of a soap bubble have about the same...Ch. 26 - What is the thinnest soap film (excluding the case...Ch. 26 - A thin film of polystyrene of refractive index...Ch. 26 - Conserving energy. The lead architect on the...Ch. 26 - Nonglare glass. When viewing a piece of art that...Ch. 26 - The lenses of a particular set of binoculars have...Ch. 26 - A plate of glass 9.00 cm long is placed in contact...Ch. 26 - Two rectangular pieces of plane glass are laid one...Ch. 26 - A researcher measures the thickness of a layer of...Ch. 26 - Compact disc player. A compact disc (CD) is read...Ch. 26 - A beam of laser light of wavelength 632.8 nm fails...Ch. 26 - Parallel rays of green mercury light with a...Ch. 26 - Parallel light rays with a wavelength of 600 nm...Ch. 26 - Monochromatic light from a distant source is...Ch. 26 - Red light of wavelength 633 nm from a helium-neon...Ch. 26 - Light of wavelength 633 nm from a distant source...Ch. 26 - Doorway diffraction. Diffraction occurs for all...Ch. 26 - Light of wavelength 585 nm falls on a slit 0 0666...Ch. 26 - A glass sheet measuring 10.0 cm 25.0 cm is...Ch. 26 - A laser beam of unknown wavelength passes through...Ch. 26 - A laser beam of wavelength 600.0 nm is incident...Ch. 26 - When laser light of wavelength 632.8 nm passes...Ch. 26 - A diffraction grating has 5580 lines/cm When a...Ch. 26 - Monochromatic light is at normal incidence on a...Ch. 26 - Set Up: The maxima are located by dsin= m, where d...Ch. 26 - Light of wavelength 631 nm passes through a...Ch. 26 - If a diffraction grating produces a third-order...Ch. 26 - A converging lens 7.20 cm in diameter has a focal...Ch. 26 - A reflecting telescope is used to observe two...Ch. 26 - Two satellites at an altitude of 1200 km are...Ch. 26 - Resolution of telescopes. Due to blurring caused...Ch. 26 - Resolution of the eye, I. Even if the lenses of...Ch. 26 - Resolution of the eye, II. The maximum resolution...Ch. 26 - Spy satellites? Assume that a spy satellite in...Ch. 26 - Two identical audio speakers connected to the same...Ch. 26 - Suppose you illuminate two thin slits by...Ch. 26 - Coating eyeglass lenses. Eyeglass lenses can be...Ch. 26 - Sensitive eyes. You have just put some medical...Ch. 26 - || A wildlife photographer uses a moderate...Ch. 26 - Thickness of human hair. Although we have...Ch. 26 - An oil tanker spills a large amount of oil (n = 1...Ch. 26 - A thin glass slide (n = 1.53) that is 0.485 m...Ch. 26 - Searching for planets around other stars. If an...Ch. 26 - You need a diffraction grating that will disperse...Ch. 26 - Set Up: Interference occurs due to the path...Ch. 26 - A physics student performs Youngs double-slit...Ch. 26 - The professor then adjusts the apparatus. The...Ch. 26 - The professor returns the apparatus to the...Ch. 26 - The professor again returns the apparatus to its...Ch. 26 - The professor once again returns the apparatus to...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Consider Figure 5.28. The driver attempts to get the car out of the mud by exerting a perpendicular force of 61...
University Physics Volume 1
1. A railroad car loaded with rocks coasts on a level track without friction. A worker at the back of the car s...
Physics: Principles with Applications
Explain all answers clearly, with complete sentences and proper essay structure if needed. An asterisk (*) desi...
Cosmic Perspective Fundamentals
67. Halogen Bulbs
Halogen bulbs have some differences from standard incandescent lightbulbs. They are generally...
College Physics: A Strategic Approach (3rd Edition)
Q8.1 In splitting logs with a hammer and wedge, is a heavy hammer more effective than a lighter hammer? Why?
University Physics (14th Edition)
A gold film in an integrated circuit measures 1.85 m thick by 0.120 mm wide. It carries a current density of 0....
Essential University Physics: Volume 2 (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
- People are often bothered when they discover that reflecting telescopes have a second mirror in the middle to bring the light out to an accessible focus where big instruments can be mounted. “Don’t you lose light?” people ask. Well, yes, you do, but there is no better alternative. You can estimate how much light is lost by such an arrangement. The primary mirror (the one at the bottom in Figure 6.6) of the Gemini North telescope is 8 m in diameter. The secondary mirror at the top is about 1 m in diameter. Use the formula for the area of a circle to estimate what fraction of the light is blocked by the secondary mirror. Figure 6.6 Focus Arrangements for Reflecting Telescopes. Reflecting telescopes have different options for where the light is brought to a focus. With prime focus, light is detected where it comes to a focus after reflecting from the primary mirror. With Newtonian focus, light is reflected by a small secondary mirror off to one side, where it can be detected (see also Figure 6.5). Most large professional telescopes have a Cassegrain focus in which light is reflected by the secondary mirror down through a hole in the primary mirror to an observing station below the telescope.arrow_forwardThe angular resolution of a radio telescope is to be 0.100 when the incident waves have a wavelength of 3.00 mm. What minimum diameter is required for the telescopes receiving dish?arrow_forwardWhen astronomers discuss the apertures of their telescopes, they say bigger is better. Explain why.arrow_forward
- Radio waves have wavelengths that are typically many centimeters, or even meters. Radio telescopes also tend to have diameters that are much larger than optical telescopes. They are sometimes 25, 50, even 100 m in diameter. In fact, the Arecibo radio telescope in Puerto Rico is about 300 m in diameter. How does the resolution of the Arecibo telescope observing radio waves of wavelength 10 cm compare to that of a 1-m diameter optical telescope observing in green light with a wavelength of 500 nm? Explain why radio telescopes are so large.arrow_forwardThe large space telescope that has been placed into an Earth orbit has an aperture diameter of 1.4 meters. What angular resolution will this telescope achieve for visible light of wavelength 2 = 6.5 x 10-7 m? Write your answer in "seconds of arc".arrow_forwardThe Giant Metrewave Radio Telescope (GMRT) near Pune has several antennas spread over a region of size about 10 km. Make an estimate of the resolution (in arcseconds) that this telescope is expected to have. How large will an optical telescope have to be to achieve a similar resolution in visible light?arrow_forward
- 11:55 phys.libretexts.org Submit Both the Keck Telescope and Hubble Space Telescope (HST) observe visible light. Given a typical visible light wavelength of 500 nm, and the diameters of 10 m for Keck and 2.4 m for Hubble, which telescope do you think would have better angular resolution? Based on the equation for angular resolution, what is the resolution of Keck at 500 nm? Of HST? How can we help VIEW Submit %Darrow_forwardA series of optical telescopes produced an image that has a resolution of about 0.00350 arc second. What is the smallest diameter telescope that could theoretically resolve these features using light with a wavelength of 1.90 μm? (Note: 1arcsec=1/3600∘) Express your answer to three significant figures and include appropriate units.arrow_forwardSuppose you want a telescope that would allow you to see distinguishing features as small as 6.5 km on the Moon some 384,000 km away. Assume an average wavelength of 550 nm for the light received. What is the minimum diameter of the mirror (in centimeters) that you could use in the telescope?arrow_forward
- What is bandwidth in an optical instrument? How does it relate to resolution and noise in an optical instrument?arrow_forward(a) How far apart must two objects be on the moon to be resolved by the human eye? Take the diameter of the pupil of the eye to be 6 mm, the wavelength of the light to be 500 nm, and the distance from the earth to the moon to be 380 000 km. Number Units (b) How far apart must the objects be on the moon be to be resolved by a telescope that has a mirror diameter of 6 m? Number Unitsarrow_forwardLarge telescopes are usually reflecting rather than refracting. List some reasons for this choice.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Physics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningFoundations of Astronomy (MindTap Course List)PhysicsISBN:9781337399920Author:Michael A. Seeds, Dana BackmanPublisher:Cengage Learning
- Stars and Galaxies (MindTap Course List)PhysicsISBN:9781337399944Author:Michael A. SeedsPublisher:Cengage LearningPhysics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningPrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Foundations of Astronomy (MindTap Course List)
Physics
ISBN:9781337399920
Author:Michael A. Seeds, Dana Backman
Publisher:Cengage Learning
Stars and Galaxies (MindTap Course List)
Physics
ISBN:9781337399944
Author:Michael A. Seeds
Publisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Convex and Concave Lenses; Author: Manocha Academy;https://www.youtube.com/watch?v=CJ6aB5ULqa0;License: Standard YouTube License, CC-BY