Tutorials in Introductory Physics
1st Edition
ISBN: 9780130970695
Author: Peter S. Shaffer, Lillian C. McDermott
Publisher: Addison Wesley
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Textbook Question
Chapter 10.5, Problem 1bT
Consider a point on the distant object that is also on the principal axis of the lens.
On the diagram below, sketch several rays from this distant point that reach the lens.
How are these rays oriented with respect to one another and to the principal axis? Explain.
On the basis of your observations from part A, show the continuation of each of these rays through the lens and out the other side. On the diagram, indicate where the rays converge.
Note: Refraction takes place at the two surfaces of the lens. However, in drawing a ray diagram for a thin lens, it is customary to draw rays as if all refraction takes place at the center of the lens.
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Students have asked these similar questions
Consider a ray diagram below that depicts familiar 4 principal rays that allow us to find the image of an object as shown. However, there are many other rays that will leave the tip of the object. Consider, for example, ray No. 5 that gets reflected from a mirror at point A. Where will the reflected ray No. 5 go?
The reflected ray will pass through the tip of the image.
The reflected ray will pass through the center of curvature.
The reflected ray will pass through the focal point F.
It's impossible to predict where the reflected ray will go.
An object and screen are located as shown below, and a converging lens is placed between them. The lens produces a sharp image of the object on the screen.
On the diagram, draw two principal rays from the top of the object (i.e. tip of the pencil) to the screen that will allow you to locate both focal points of the lens, and label these points on the diagram. Explain the reasoning used to determine the answer.
On the diagram of the previous question, it is known that the distance between the lens and the object is twice the distance between the lens and the screen.
It is also found that by moving the object closer to the lens by 12 cm, the lens produces a lateral magnification of –1 (of course the screen is also moved in the process). Compute the focal length of the lens in cm. Please show work
Part A
The diagram below shows the situation described in the problem. The focal length of the lens is labeled f; the scale on the
optical axis is in centimeters.Draw the three special rays Ray1, Ray2, and Ray3 as described in the Tactics Box above, and
label each ray accordingly. Draw the rays from the tip of the object to the lens. Do not draw the refracted rays.
Draw the vectors starting from the tip of the object. The location and orientation of the vectors will be graded. The
length of the vectors will not be graded.
+,
Vectors:
Ray3 Ray through center of lens
Ray2 Ray toward far focal point
Rayl Ray parallel to axis
Unlabeled vector
Object
1
Chapter 10 Solutions
Tutorials in Introductory Physics
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