Explanation Given that an object is placed 60 cm from a certain converging lens (convex lens), it forms a real image. And when the object is moved closer to lens at 40 cm, the image moves 10 cm farther from the lens. Given: Given that in first case object distance from lens (say) u 1 = - 60 cm (according to the sign convention for convex lens, when object is behind lens) In second condition object distance from lens (say) u 2 = - 40 cm (according to sign convention of convex lens, when object is behind lens) Let’s assume that focal length of lens is (say) f And in first case image is formed at distance = v 1 So, in second case image distance from object would be = ( v 1 + 1 0 ) cm Formula used: Focal length of convex lens if represented by 1 / f = 1 / v - 1 / u Calculation: For the first case 1 / f = 1 / v 1 – 1 / u 1 1 / f = 1 / v 1 − 1 / ( − 60 ) 1 / f = 1 / v 1 + 1 / 60 ( equation 1 ) For the second case 1 / f = 1 / ( v 1 + 10 ) – 1 / ( - 40 ) 1 / f = 1 / ( v 1 + 10 ) + 1 / 40 ( equation 2 ) From equation 1 and 2, equating both we get 1 / ( v 1 + 10 ) + 1 / 40 = 1 / v 1 + 1 / 60 1 / ( v 1 + 10 ) – 1 / v 1 = 1 / 60 – 1 / 40 ( v 1 – (

Physics: Principles and Applications -- Pearson e Text Instant Access (Pearson+)

7th Edition

ISBN: 9780137679065

Author: Douglas Giancoli

Publisher: PEARSON+

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Chapter 23, Problem 74GP

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we have to find the focal length of the lens.

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Chapter 23, Problem 73GP

Chapter 23, Problem 75GP

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Chapter 23 Solutions

Physics: Principles and Applications -- Pearson e Text Instant Access (Pearson+)

Ch. 23 - Prob. 1OQ Ch. 23 - Prob. 2OQ Ch. 23 - Prob. 1Q Ch. 23 - What is the focal length of a plane mirror? What...Ch. 23 - Prob. 3Q Ch. 23 - Prob. 4Q Ch. 23 - Prob. 5Q Ch. 23 - Prob. 6Q Ch. 23 - Prob. 7Q Ch. 23 - Prob. 8Q

Ch. 23 - Prob. 9Q Ch. 23 - Prob. 10Q Ch. 23 - Prob. 11Q Ch. 23 - You look into an aquarium and view a fish inside....Ch. 23 - Prob. 13Q Ch. 23 - Prob. 14Q Ch. 23 - A child looks into a pool to see how deep it is....Ch. 23 - Prob. 16Q Ch. 23 - Prob. 17Q Ch. 23 - Prob. 18Q Ch. 23 - Prob. 19Q Ch. 23 - Prob. 20Q Ch. 23 - Prob. 21Q Ch. 23 - Prob. 22Q Ch. 23 - Prob. 23Q Ch. 23 - Prob. 24Q Ch. 23 - Prob. 25Q Ch. 23 - Prob. 26Q Ch. 23 - Prob. 27Q Ch. 23 - Prob. 28Q Ch. 23 - Prob. 29Q Ch. 23 - Prob. 30Q Ch. 23 - Prob. 31Q Ch. 23 - Prob. 32Q Ch. 23 - Prob. 1MCQ Ch. 23 - Prob. 2MCQ Ch. 23 - Prob. 3MCQ Ch. 23 - Prob. 4MCQ Ch. 23 - Prob. 5MCQ Ch. 23 - Prob. 6MCQ Ch. 23 - Prob. 7MCQ Ch. 23 - Prob. 8MCQ Ch. 23 - Prob. 9MCQ Ch. 23 - Prob. 10MCQ Ch. 23 - Prob. 11MCQ Ch. 23 - Prob. 12MCQ Ch. 23 - Prob. 13MCQ Ch. 23 - Prob. 14MCQ Ch. 23 - Prob. 1P Ch. 23 - Prob. 2P Ch. 23 - Two plane mirrors meet at a 1350 angle, Fig....Ch. 23 - Prob. 4P Ch. 23 - Prob. 5P Ch. 23 - Prob. 6P Ch. 23 - Suppose you are 94 cm from a plane mirror. What...Ch. 23 - A solar cooker, really a concave mirror pointed at...Ch. 23 - How far from a concave mirror (radius 21.0 cm)...Ch. 23 - A small candle is 38 cm from a concave mirror...Ch. 23 - An object 3.0 mm high is placed 16 cm from a...Ch. 23 - A dentist wants a small mirror that, when 2.00 cm...Ch. 23 - You are standing 3.4 m from a convex security...Ch. 23 - The image of a distant tree is virtual and very...Ch. 23 - Prob. 15P Ch. 23 - Prob. 16P Ch. 23 - Prob. 17P Ch. 23 - Some rearview mirrors produce images of cars to...Ch. 23 - Prob. 19P Ch. 23 - Prob. 20P Ch. 23 - Prob. 21P Ch. 23 - Prob. 22P Ch. 23 - Prob. 23P Ch. 23 - Prob. 24P Ch. 23 - Prob. 25P Ch. 23 - Prob. 26P Ch. 23 - Prob. 27P Ch. 23 - Prob. 28P Ch. 23 - Prob. 29P Ch. 23 - Prob. 30P Ch. 23 - Rays of the Sunare seen to make a 36.0° angle to...Ch. 23 - Prob. 32P Ch. 23 - A beam of light in air strikes a slab of glass (n...Ch. 23 - Prob. 34P Ch. 23 - Prob. 35P Ch. 23 - Prob. 36P Ch. 23 - Prob. 37P Ch. 23 - Prob. 38P Ch. 23 - 39. (Ill) (a) What is the minimum index of...Ch. 23 - 40. (Ill) A beam of light enters the end of an...Ch. 23 - Prob. 41P Ch. 23 - Prob. 42P Ch. 23 - Prob. 43P Ch. 23 - Prob. 44P Ch. 23 - Prob. 45P Ch. 23 - Prob. 46P Ch. 23 - A stamp collector uses a converging lens with...Ch. 23 - Prob. 48P Ch. 23 - Prob. 49P Ch. 23 - Prob. 50P Ch. 23 - Prob. 51P Ch. 23 - Prob. 52P Ch. 23 - Prob. 53P Ch. 23 - Prob. 54P Ch. 23 - Prob. 55P Ch. 23 - Prob. 56P Ch. 23 - Prob. 57P Ch. 23 - A diverging lens with f= -36.5 cm is placed 14.0...Ch. 23 - Prob. 59P Ch. 23 - Prob. 60P Ch. 23 - Two lenses, one converging with focal length 20.0...Ch. 23 - Prob. 62P Ch. 23 - A double concave lens has surface radii of 33.4 cm...Ch. 23 - Prob. 64P Ch. 23 - Prob. 65P Ch. 23 - Prob. 66P Ch. 23 - Prob. 67P Ch. 23 - Prob. 68P Ch. 23 - Prob. 69GP Ch. 23 - Prob. 70GP Ch. 23 - Prob. 71GP Ch. 23 - The critical angle of a certain piece of plastic...Ch. 23 - Prob. 73GP Ch. 23 - Prob. 74GP Ch. 23 - Prob. 75GP Ch. 23 - Prob. 76GP Ch. 23 - 77 77. If the apex of a prism is ? = 75o (see...Ch. 23 - Prob. 78GP Ch. 23 - Prob. 79GP Ch. 23 - Prob. 80GP Ch. 23 - Prob. 81GP Ch. 23 - Prob. 82GP Ch. 23 - Prob. 83GP Ch. 23 - Figure 23-65is a photograph of an eyeball with the...Ch. 23 - Prob. 85GP Ch. 23 - Prob. 86GP Ch. 23 - 87 ‘(a) Show that if two thin lenses of focal...Ch. 23 - Prob. 88GP Ch. 23 - Prob. 89GP Ch. 23 - Prob. 90GP

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