Physics (5th Edition)
5th Edition
ISBN: 9780321976444
Author: James S. Walker
Publisher: PEARSON
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Textbook Question
Chapter 27, Problem 17PCE
A clerk at the local grocery store wears glasses that make her eyes look larger than they actually are. Is the clerk nearsighted or farsighted? Explain.
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Check out a sample textbook solutionChapter 27 Solutions
Physics (5th Edition)
Ch. 27.1 - If the f -number on a camera is increased does the...Ch. 27.2 - Prob. 2EYUCh. 27.3 - A magnifying glass is held over a ruled piece of...Ch. 27.4 - Rank the following microscopes in order of...Ch. 27.5 - In a typical telescope, is foppose greater than,...Ch. 27.6 - One advantage of reflecting telescopes over...Ch. 27 - Prob. 1CQCh. 27 - Prob. 2CQCh. 27 - If your near-point distance is N, how close can...Ch. 27 - When you open your eyes underwater, everything...
Ch. 27 - When you use a simple magnifying glass, does it...Ch. 27 - Does chromatic aberration occur in mirrors?...Ch. 27 - BIO Predict/Explain Octopus Eyes To focus its...Ch. 27 - Your friend is 1.7 m tall. (a) When she stands 3.2...Ch. 27 - Which forms the larger image on the retina of your...Ch. 27 - Approximating the eye as a single thin lens 2.70...Ch. 27 - Approximating the eye as a single thin lens 2.70...Ch. 27 - Find the far-point distance of a person whose...Ch. 27 - Four camera lenses have the following focal...Ch. 27 - BIO The focal length of the human eye is...Ch. 27 - Predict/Calculate A camera with a...Ch. 27 - The actual light sensor size of a digital camera...Ch. 27 - (a) Find the f -number of a telescope with an...Ch. 27 - You are taking a photo of a poster on the wall of...Ch. 27 - You are taking pictures of the beach at sunset...Ch. 27 - Predict/Calculate You are taking a photograph of a...Ch. 27 - The Hale Telescope The 200-in. (5.08-m) diameter...Ch. 27 - Predict/Explain Two professors are stranded on a...Ch. 27 - A clerk at the local grocery store wears glasses...Ch. 27 - The umpire at a baseball game wears glasses that...Ch. 27 - A police detective discovers eyeglasses with a...Ch. 27 - BIO The cornea of a normal human eye has an...Ch. 27 - A myopic student is shaving without his glasses....Ch. 27 - An eyeglass prescription calls for a lens with an...Ch. 27 - An optometrist prescribes contact lenses with a...Ch. 27 - Two thin lenses, with f1 = +25.0 cm and f2 = 42.5...Ch. 27 - Two concave lenses, each with f = 15 cm, are...Ch. 27 - BIO Predict/Calculate The focal length of a...Ch. 27 - BIO Predict/Calculate Diopter Change in Diving...Ch. 27 - A converging lens of focal length 9,000 cm is 18.0...Ch. 27 - Repeat Problem 28, this time with the coin placed...Ch. 27 - Find the focal length of contact lenses that would...Ch. 27 - Find the focal length of contact lenses that would...Ch. 27 - What focal length should a pair of contact lenses...Ch. 27 - Reading glasses with a power of + 1.50 diopters...Ch. 27 - A nearsighted person wears contacts with a focal...Ch. 27 - Without his glasses, Isaac can see objects clearly...Ch. 27 - A person whose near-point distance is 42.5 cm...Ch. 27 - A pair of eyeglasses is designed to allow a person...Ch. 27 - Predict/Calculate Your favorite aunt can read a...Ch. 27 - Predict/Calculate The relaxed eyes of a patient...Ch. 27 - Without glasses, your Uncle Albert can see things...Ch. 27 - A 2.05-cm-tall object is placed 30.0 cm to the...Ch. 27 - A simple camera telephoto lens consists of two...Ch. 27 - Predict/Calculate With unaided vision, a librarian...Ch. 27 - A persons prescription for her new bifocal glasses...Ch. 27 - A persons prescription for his new bifocal...Ch. 27 - Two lenses, with f1 = +20.0 cm and f2 = +30.0 cm,...Ch. 27 - A converging lens with a focal length of 4.0 cm is...Ch. 27 - Two magnifying glasses are for sale at a store....Ch. 27 - The Moon is 3476 km in diameter and orbits the...Ch. 27 - A magnifying glass is a single convex lens with a...Ch. 27 - Calculate the focal length of a magnifying lens...Ch. 27 - Predict/Calculate A student has two lenses, one of...Ch. 27 - A beetle 4.93 mm long is examined with a simple...Ch. 27 - To engrave wishes of good luck on a watch, an...Ch. 27 - A jeweler examines a diamond with a magnifying...Ch. 27 - In Problem 55, find the angular magnification when...Ch. 27 - Prob. 57PCECh. 27 - You have two lenses: lens 1 with a focal length of...Ch. 27 - Predict/Calculate Microscope objective A is...Ch. 27 - A compound microscope has an objective lens with a...Ch. 27 - BIO A typical red blood cell subtends an angle of...Ch. 27 - (a) If you treat a 10x eyepiece of a microscope as...Ch. 27 - The medium-power objective lens in a laboratory...Ch. 27 - A compound microscope has the objective and...Ch. 27 - The barrel of a compound microscope is 15 cm in...Ch. 27 - A compound microscope uses a 75.0-mm lens as the...Ch. 27 - The tube length of a microscope is defined to be...Ch. 27 - Two telescopes of different lengths produce the...Ch. 27 - A grade school student plans to build a 35-power...Ch. 27 - A 75-power refracting telescope has an eyepiece...Ch. 27 - An amateur astronomer wants to build a small...Ch. 27 - A pirate sights a distant ship with a spyglass...Ch. 27 - A telescope has lenses with focal lengths f1 =...Ch. 27 - Jason has a 25-power telescope whose objective...Ch. 27 - Roughing It with Science A professor shipwrecked...Ch. 27 - Galileos Telescope Galileos first telescope used a...Ch. 27 - The Moon has an angular size of 0 50 when viewed...Ch. 27 - A telescope is 275 mm long and has an objective...Ch. 27 - The focal length for light that strikes near the...Ch. 27 - The focal length for red light that strikes a...Ch. 27 - BIO Predict/Explain Intracorneal Ring An...Ch. 27 - CE BIO The lens in a normal human eye, with...Ch. 27 - CE BIO Predict/Explain Treating Cataracts When the...Ch. 27 - Galileos original telescope (Figure 27-29) used a...Ch. 27 - Predict/Calculate For each of the following cases,...Ch. 27 - Predict/Calculate You have two lenses, with focal...Ch. 27 - BIO The eye is actually a multiple-lens system,...Ch. 27 - BIO Fitting Contact Lenses with a Keratometer When...Ch. 27 - Pricey Stamp A rare 1918 Jenny stamp, depicting a...Ch. 27 - Prob. 90GPCh. 27 - Consider a Galilean telescope, as illustrated in...Ch. 27 - A farsighted person uses glasses with a refractive...Ch. 27 - Landing on an Aircraft Carrier The Fresnel Lens...Ch. 27 - A Cassegrain astronomical telescope uses two...Ch. 27 - Predict/Calculate A convex Ions (f = 20.0 cm) is...Ch. 27 - The diameter of a collimated laser beam can be...Ch. 27 - Consider three lenses with focal lengths of 25.0...Ch. 27 - Because a concave lens cannot form a real image of...Ch. 27 - A person with a near-point distance N uses a...Ch. 27 - Prob. 100GPCh. 27 - Prob. 101PPCh. 27 - Prob. 102PPCh. 27 - Prob. 103PPCh. 27 - Predict/Calculate Referring to Example 27-4...Ch. 27 - Predict/Calculate Referring to Example 27-4 in...Ch. 27 - Predict/Calculate Referring to Example 27-4 In...Ch. 27 - Predict/Calculate Referring to Example 27-6...Ch. 27 - Predict/Calculate Referring to Example 27-6...
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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
- If the cornea is to be reshaped (this can be done surgically or with contact lenses) to correct myopia, should its curvature be made greater or smaller? Explain.arrow_forwardWill the focal length of a lens change when it is submerged in water? Explain.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
- For a normal, relaxed eye, a magnifying glass produces an angular magnification of 4.0. What is the largest magnification possible with this magnifying glass?arrow_forwardCan an image be larger than the object even though its magnification is negative? Explain.arrow_forwardA particular nearsighted patient cant see objects clearly beyond 15.0 cm from their eye. Determine (a) the lens power required to correct the patients vision and (b) the type of lens required (converging or diverging). Neglect the distance between the eye and the corrective lens.arrow_forward
- In Figures CQ36.11a and CQ36.11b, which glasses correct nearsightedness and which correct farsightedness?arrow_forwardWhy is your vision so blurry when you open your eyes while swimming under water? How does a face mask enable clear vision?arrow_forwardExplain why a fish in a spherical goldfish bowl appears larger than it really is.arrow_forward
- A magnifying glass produces an angular magnification of 4.5 when used by a young person with a near point of 18 cm. What is the maximum angular magnification obtained by an older person with a near point of 45 cm?arrow_forwardCan you see a virtual image? Explain your response.arrow_forwardYou note that your prescription for new eyeglasses is 4.50 D. What will their focal leng1h be?arrow_forward
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Convex and Concave Lenses; Author: Manocha Academy;https://www.youtube.com/watch?v=CJ6aB5ULqa0;License: Standard YouTube License, CC-BY