College Physics (10th Edition)
10th Edition
ISBN: 9780321902788
Author: Hugh D. Young, Philip W. Adams, Raymond Joseph Chastain
Publisher: PEARSON
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Textbook Question
Chapter 25, Problem 6CQ
Since a refracting telescope and a compound microscope have the same basic design, can they be used interchangeably? In other words, could you use a telescope as a microscope and vice versa? Why? In what ways are they different and in what ways similar?
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Chapter 25 Solutions
College Physics (10th Edition)
Ch. 25 - Prob. 1CQCh. 25 - A diver proposed using a clear plastic bag full of...Ch. 25 - The human eye is often compared to a camera. In...Ch. 25 - If the sensor array of a digital camera is placed...Ch. 25 - There have been reports of round fishbowls...Ch. 25 - Since a refracting telescope and a compound...Ch. 25 - You are selecting a converging lens for a...Ch. 25 - While choosing between two refracting astronomical...Ch. 25 - When choosing between two refracting astronomical...Ch. 25 - Youve entered a survival contest that will include...
Ch. 25 - If a person is severely nearsighted, can the...Ch. 25 - Ads for amateur telescopes sometimes contain...Ch. 25 - The focusing mechanism of the human eye most...Ch. 25 - Which of the following statements are true about...Ch. 25 - If, without changing anything else, we double the...Ch. 25 - If a person's eyeball is 2.7 cm deep instead of...Ch. 25 - Which of the following statements are true about...Ch. 25 - If a camera lens gives the proper exposure for a...Ch. 25 - Which of the following operations would increase...Ch. 25 - Which of the following statements are true about a...Ch. 25 - A camera is focusing on an animal. As the creature...Ch. 25 - Your eye is focusing on a person As he walks...Ch. 25 - An astronomical telescope is made with an...Ch. 25 - A simple magnifying glass produces a A. real...Ch. 25 - The focal length of an f/4 camera lens is 300 mm....Ch. 25 - A camera has a lens with an aperture diameter of...Ch. 25 - (a) A small refracting telescope designed for...Ch. 25 - A 135 mm telephoto lens for a 35 mm camera has...Ch. 25 - A camera lens has a focal length of 200 mm. How...Ch. 25 - A camera is focused on an object that is 1.2 m...Ch. 25 - A certain digital camera having a lens with focal...Ch. 25 - Your digital camera has a lens with a 50 mm focal...Ch. 25 - You want to take a full-length photo of your...Ch. 25 - Zoom lens. A zoom lens is a lens that varies in...Ch. 25 - The cornea as a thin lens. Measurements on the...Ch. 25 - Range of the focal length of the eye. We can model...Ch. 25 - A 40-year-old optometry patient focuses on a...Ch. 25 - Crystalline lens of the eye. The crystalline lens...Ch. 25 - Contact lenses. Contact lenses are placed right on...Ch. 25 - Ordinary eyeglasses. Ordinary glasses are worn in...Ch. 25 - A person can see clearly up close, but cannot...Ch. 25 - In one form of cataract surgery the person's...Ch. 25 - Bifocals. A person can focus clearly only on...Ch. 25 - A student's far point is at 17.0 cm. and she needs...Ch. 25 - (a) Where is the near point of an eye for which a...Ch. 25 - Corrective lenses. Determine the power of the...Ch. 25 - You want to view an insect 2.00 mm in length...Ch. 25 - A simple magnifier for viewing postage stamps and...Ch. 25 - A thin lens with a focal length of 6.00 cm is used...Ch. 25 - || The focal length of a simple magnifier is 8.00...Ch. 25 - A microscope has an objective lens with a focal...Ch. 25 - A compound microscope has an objective lens of...Ch. 25 - An insect 1.2 mm tall is placed 1.0 mm beyond the...Ch. 25 - The objective lens and the eyepiece of a...Ch. 25 - The focal length of the eyepiece of a certain...Ch. 25 - A certain microscope is provided with objectives...Ch. 25 - Resolution of a microscope. The image formed by a...Ch. 25 - A refracting telescope has an objective lens of...Ch. 25 - The eyepiece of a refracting astronomical...Ch. 25 - Galileos telescopes, I. While Galileo did not...Ch. 25 - The objective mirror of the Hubble Space Telescope...Ch. 25 - The largest refracting telescope in the world is...Ch. 25 - A photographer takes a photograph of a Boeing 747...Ch. 25 - Curvature of the cornea. In a simplified model of...Ch. 25 - A nearsighted eye. A certain very nearsighted...Ch. 25 - You are examining a flea with a converging lens...Ch. 25 - Physician, heal thyself! (a) Experimentally...Ch. 25 - Laser eye surgery. The distance from the vertex of...Ch. 25 - Its all done with mirrors. A photographer standing...Ch. 25 - An amateur photographer purchases a vintage camera...Ch. 25 - A person with a digital camera uses a lens of...Ch. 25 - A microscope with an objective of focal length...Ch. 25 - A person with a near point of 85 cm, but excellent...Ch. 25 - A telescope is constructed from two lenses with...Ch. 25 - Galileos telescopes, II. The characteristics that...Ch. 25 - A frog can see an insect clearly at a distance of...Ch. 25 - Amphibian vision. The eyes of amphibians such as...Ch. 25 - Given that frogs are nearsighted in air, what is...Ch. 25 - To determine whether a frog can judge distance by...
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- A large reflecting telescope has an objective mirror with a 10.0-rn radius of curvature. What angular magnification does it produce when a 3.00 m-focal length eyepiece is used?arrow_forwardWhy is it advantageous to use a large-diameter objective lens in a telescope? (a) It diffracts the light more effectively than smaller-diameter objective lenses. (b) It increases its magnification. (c) It enables you to see more objects in the field of view. (d) It reflects unwanted wavelengths. (e) It increases its resolution.arrow_forwardWhat is the angular magnification of a telescope that has a 100 cm-focal length objective and a 2.50 cm-focal length eyepiece?arrow_forward
- If you build a telescope with a focal length of 1.3 m, what focal length does the eyepiece need to give a magnification of 100 times?arrow_forwardWhat range of magnification is possible with a 7.0 cm-focal length converging lens?arrow_forwardA nearsighted man cannot see objects clearly beyond 20 cm from his eyes. How close must he stand to a mirror in order to see what he is doing when he shaves?arrow_forward
- Why is the lens on a good-quality camera coated with a thin film?arrow_forwardTwo stars that are 109km apart are viewed by a telescope and found to be separated by an angle of 105 radians. If the eyepiece of the telescope has a focal length of 1.5 cm and the objective has a focal length of 3 meters, how far away are the stars from the observer?arrow_forwardAn unknown planet at a distance of 1012 m from Earth is observed by a telescope that has a focal length of the eyepiece of 1 cm and a focal length of the objective of I m. If the far away planet is seen to subtend an angle of 105 radian at the eyepiece, what is the size of the planet?arrow_forward
- Where does an object need to be placed relative to a microscope for its 0.50 cm-focal length objective to produce a magnification of —400?arrow_forwardPeople 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_forwardA certain telescope has an objective of focal length 1 500 cm. If the Moon is used as an object, a 1.0-cm-long image formed by the objective corresponds to what distance, in miles, on the Moon? Assume 3.8 x 10 8 m for the Earth–Moon distance.arrow_forward
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