Physics (5th Edition)
5th Edition
ISBN: 9780321976444
Author: James S. Walker
Publisher: PEARSON
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Textbook Question
Chapter 27, Problem 51PCE
Calculate the focal length of a magnifying lens designed to produce an angular magnification of 8.50 while producing the image at the standard near-point distance of 25.0 cm.
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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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- What is the focal length of a magnifying glass that produces a magnification of 3.00 when held 5.00 cm from an object, such as a rare coin?arrow_forwardA 7.5x binocular produces an angular magnification of 7.50, acting like a telescope. (Mirrors are used to make the image upright.) If the binoculars have objective lenses with a 75.0 cm focal length, what is the focal length of the eyepiece lenses?arrow_forwardA converging lens has a focal length of 20.0 cm. Locate the image for object distances of (a) 40.0 cm, (b) 20.0 cm, and (c) 10.0 cm. For each case, state whether the image is real or virtual and upright or inverted. Find the magnification in each case.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_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_forwardA 7.5 binocular produces an angular magnification of —7.50, acting like a telescope. (Mirrors are used to make the image upright.) If the binoculars have objective lenses with a 75.0-cm focal length, what is the focal length of the eyepiece lenses?arrow_forward
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- Parallel rays from a faraway source strike a diverging lens of focal length 20 cm at an angle of 10 degrees with the horizontal direction. As you look through the lens, where in the vertical plane the image would appear?arrow_forwardA point source of light is 50 cm in front of a converging lens of focal length 30 cm. A concave mirror with a focal length of 20 cm is placed 25 cm behind the lens. Where does the final image form, and what are its orientation and magnification?arrow_forwardYou view an object by holding a 2.5 cm-focal length magnifying glass 10 cm away from it. How far from your eye should you hold the magnifying glass to obtain a magnification of 10 ?arrow_forward
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