Explanation Given data: f 1 = 50 mm f 2 = 600 mm Formula used: Consider the expression for magnification of a lens. m = − s ′ s (1) Here, s ′ is the image distance from the center of lens and s is the object distance from the center of lens. Consider another expression for magnification of a lens. m = h ′ h (2) Here, h ′ is the image height, and h is the object height. Consider the expression for lens formula. 1 f = 1 s + 1 s ′ (3) Here, f is the focal length of the lens, s is the object distance of the lens and, s ′ is the image distance of the lens. Explanation: Consider the giraffe is at a far distance s . Substitute 50 mm for f and s ′ 1 for s ′ in equation (1), 1 50 mm = 1 s + 1 s ′ 1 Modify the equation to find s . 1 s ′ 1 = 1 50 mm − 1 s s ′ 1 = s − 50 mm ( 50 mm ) s (4) Substitute 600 mm for f and s 2 ′ for s ′ in equation (1), 1 600 mm = 1 s + 1 s ′ 2 Modify the equation to find s . 1 s ′ 2 = 1 600 mm − 1 s s ′ 2 = s − 600 mm ( 600 mm ) s (5) Magnification of the camera when 50 mm lens was used is, m 1 = h ′ 1 h Substitute h ′ 1 h for m and s ′ 1 for s ′ in equation (1), h ′ 1 h = − s ′ 1 s (6) Magnification of the camera when 600 mm lens was used is, m 2 = h ′ 2 h Substitute h ′ 2 h for m and s ′ 2 for s ′ in equation (1), h ′ 2 h = − s ′ 2 s (7) Divide equation (6) and (7)

Pearson eText for College Physics: A Strategic Approach -- Instant Access (Pearson+)

4th Edition

ISBN: 9780137561520

Author: Randall Knight, Brian Jones

Publisher: PEARSON+

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Chapter 19, Problem 4P

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Chapter 19 Solutions

Pearson eText for College Physics: A Strategic Approach -- Instant Access (Pearson+)

Ch. 19 - On a sunny summer day, with the sun overhead, you...Ch. 19 - Suppose you have two pinhole cameras. The first...Ch. 19 - A photographer focuses his camera on his subject....Ch. 19 - The object for a magnifier is usually placed very...Ch. 19 - A nature photographer taking a close-up shot of an...Ch. 19 - The CCD detector in a certain camera has a width...Ch. 19 - All humans have what is known as a blind spot,...Ch. 19 - Suppose you wanted special glasses designed to...Ch. 19 - You have lenses with the following focal lengths:...Ch. 19 - A friend lends you the eyepiece of his microscope...

Ch. 19 - A student makes a microscope using an objective...Ch. 19 - Prob. 17CQ Ch. 19 - Prob. 18CQ Ch. 19 - A microscope has a tube length of 20 cm. What...Ch. 19 - The distance between the objective and eyepiece of...Ch. 19 - A nearsighted person has a near point of 20 cm and...Ch. 19 - A nearsighted person has a near point of 20 cm and...Ch. 19 - A 60-year-old man has a near point of 100 cm,...Ch. 19 - Prob. 25MCQ Ch. 19 - Prob. 26MCQ Ch. 19 - An amateur astronomer looks at the moon through a...Ch. 19 - Prob. 1P Ch. 19 - A student has built a 20-cm-long pinhole camera...Ch. 19 - A pinhole camera is made from an 80-cm-long box...Ch. 19 - Prob. 4P Ch. 19 - A photographer uses his camera, whose lens has a...Ch. 19 - Prob. 6P Ch. 19 - An older camera has a lens with a focal length of...Ch. 19 - Prob. 8P Ch. 19 - In Figure P19.6 the camera lens has a 50 mm focal...Ch. 19 - Prob. 10P Ch. 19 - Prob. 11P Ch. 19 - Prob. 12P Ch. 19 - Prob. 14P Ch. 19 - Prob. 16P Ch. 19 - A farsighted person has a near point of 50 cm...Ch. 19 - Prob. 18P Ch. 19 - A nearsighted woman has a far point of 300 cm....Ch. 19 - Prob. 20P Ch. 19 - Martin has severe myopia, with a far point of only...Ch. 19 - Prob. 22P Ch. 19 - Rank the following people from the most...Ch. 19 - Prob. 24P Ch. 19 - Prob. 25P Ch. 19 - Prob. 26P Ch. 19 - Prob. 27P Ch. 19 - Prob. 28P Ch. 19 - The diameter of a penny is 19 mm. How far from...Ch. 19 - Prob. 30P Ch. 19 - A magnifier has a magnification of 5. How far from...Ch. 19 - Prob. 32P Ch. 19 - Prob. 33P Ch. 19 - Prob. 34P Ch. 19 - A forensic scientist is using a standard...Ch. 19 - A microscope with an 8.0-mm-focal-length objective...Ch. 19 - Prob. 37P Ch. 19 - Prob. 38P Ch. 19 - For the combination of two identical lenses shown...Ch. 19 - For the combination of two lenses shown in Figure...Ch. 19 - A researcher is trying to shoot a tranquilizer...Ch. 19 - The objective lens of the refracting telescope at...Ch. 19 - You use your 8 binoculars to focus on a...Ch. 19 - Prob. 44P Ch. 19 - A narrow beam of light with wavelengths from 450...Ch. 19 - Prob. 47P Ch. 19 - A ray of red light, for which n = 1.54, and a ray...Ch. 19 - Two lightbulbs are 1.0 m apart. From what distance...Ch. 19 - A 1.0-cm-diameter microscope objective has a focal...Ch. 19 - A microscope with an objective of focal length 1.6...Ch. 19 - Jason uses a lens with a focal length of 10.0 cm...Ch. 19 - A magnifier is labeled 5. What would its...Ch. 19 - A 20 microscope objective is designed for use in...Ch. 19 - Two converging lenses with focal lengths of 40 cm...Ch. 19 - A converging lens with a focal length of 40 cm and...Ch. 19 - A lens with a focal length of 25 cm is placed 40...Ch. 19 - A microscope with a 5 objective lens images a...Ch. 19 - Prob. 62GP Ch. 19 - The objective lens and the eyepiece lens of a...Ch. 19 - Your telescope has an objective lens with a focal...Ch. 19 - Martha is viewing a distant mountain with a...Ch. 19 - Susan is quite nearsighted; without her glasses,...Ch. 19 - A spy satellite uses a telescope with a...Ch. 19 - Two stars have an angular separation of 3.3 105...Ch. 19 - Frank is nearsighted and his glasses require a...Ch. 19 - What is the angular resolution of the Hubble Space...Ch. 19 - The Hubble Space Telescope has a mirror diameter...Ch. 19 - Once dark adapted, the pupil of your eye is...Ch. 19 - The normal human eye has maximum visual acuity...Ch. 19 - Prob. 75GP Ch. 19 - Light that enters your eyes is focused to form an...Ch. 19 - Light that enters your eyes is focused to form an...Ch. 19 - Light that enters your eyes is focused to form an...

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