A small object is 25.0 cm from a diverging lens as shownin Fig. 23-68. A converging lens with a focal length of12.0 cm is 30.0 cm to the right of the diverging lens. Thetwo-lens system forms a real inverted image 17.0 cm tothe right of the converging lens. What is the focal lengthof the diverging lens?30.0 cm17.0 cmFIGURE 23–6825.0 cm-Problem 90.

Object distance from the diverging lens (u)=-25 cm Focal length of converging lens (fc)=30 cm…

Answered: A small object is 25.0 cm from a…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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9- EXAMPLE 23-15 A two-lens system. Two converging lenses, A and B, with focal lengths fA in Fig. 23-44a. An object is placed 60.0 cm in front of the first lens as shown in Fig. 23-44b. Determine (a) the position, and (b) the magnification, of the final image formed by the combination of the two lenses. = 20.0 cm and fs # 25.0 cm, are placed 80.0 cm apart, as shown Lens A Lens B FB FR (а) 80.0 cm FIGURE 23-44 Two lenses, A and B, used in combination. Example 23-15. The small numbers refer to the easily drawn rays. FA FB FAIA FR OB (= 1A) doB (b)
16 Two convex lenses (focal lengths f1 1.29 m, f2 = 2.86 m) have the same principal axis and are distance 66.6 m apart. An object is placed so = 43.3 m in front of the first lens, and the second lens focuses the image on a screen. Find the distance, in m, between the object and the screen.
If a converging lens has a focal length of 20 cm, at which object distance will an image larger than object be formed on the screen? O 40 cm O 15 cm 50 cm O 30 cm
(a) A 1.00 cm-high object is placed 4.35 cm to the left of a converging lens of focal length 7.85 cm. A diverging lens of focal length -16.00 cm is 6.00 cm to the right of the converging lens. Find the position and height of the final image. cm---Select--- position height Is the image inverted or upright? upright inverted Is the image real or virtual? real virtual cm (b) What If? If an image of opposite characteristic, i.e., virtual if the image in part (a) is real and real if the image in part (a) is virtual, is to be obtained, what is the minimum distance (in cm), and in which direction, that the object must be moved from its original position? cm distance direction ---Select---
1) Since very few students answered this problem correctly on the last exam, this is a chance for a re-do: The front of an abstract painting is showWn to the right. Nothing is drawn on the back-side of the painting. A person stands behind the painting and looks at the image of the front side of the painting reflecting from two sections of plane mirrors with reflecting surface (RS) at 90 degrees to each other. (She only sees the front of the painting in its reflection from the mirrors.) 2022 Use correct Ray Tracing techniques to describe how the reflected front of the painting appears to her. RS Front of painting 270° front of painting
When a converging lens is immersed in water, does its focal length increase or decrease in comparison with the value in air? Explain.
30
If a converging lens has a focal length of 20 cm, at which object distance will an image smaller than object be formed on the screen? O 20 cm O 40 cm O 30 cm O 50 cm
Example 23-9 : Image formed by a converging lens. What are (a) the position, and (b) the size, of the image of a 7.6-cm-high leaf placed 1.00 m from a +50.0-mm-focal-length camera lens?
CHAPTER 23 A diverging lens has a focal length of magnitude 22.6 cm. D.) Find the magnification for the object at a distance: 45.2 22.6 11.3
2,2
3) A lens has a refractive index of 1.30. In air, it is a converging lens. Will it still be a converging lens if placed under water? Explain using a ray diagram.

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