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 10.2, Problem 4cT
Determine the image location using the method of ray tracing from section III. (If it is necessary to extent a ray to show from where light appears to come, use a dashed line.)
Does the light that reaches the observer actually come from the image location or does this light only appear to come from that point?
What is the smallest number of rays that you must draw in using ray tracing to determine the location of the image of an object?
How does the distance between the mirror and the image location compare to the distance between the mirror and the pin?
The diagram that you drew above to determine the image location is called a ray diagram. The point from which the reflected light appears to come (i.e., the location of the pin that you saw when you looked in the mirror) is called the image location. An image is said to be virtual when the light that forms the image does not actually pass through the image location. An image is said to be real when the light that forms the image does pass through the image location.
When drawing ray diagrams, use a solid line with an arrow head 
to represent a ray, that is, a path that light takes. Use a dashed line 
to extend a ray to show from where light appears to come in order to distinguish such a line from an actual ray.
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The two mirrors illustrated in the figure below meet at a right angle. The beam of light in the vertical plane indicated by the
dashed lines strikes mirror 1 as shown. (Let d = 1.05 m and 0 = 35.0°.)
Mirror
2
d
Mirror
(a) Determine the distance the reflected light beam travels before striking mirror 2.
(b) In what direction does the light beam travel after being reflected from mirror 2?
o above the horizontal
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A concave lens refracts parallel rays in such a way that they are bent away from the axis of the lens. For this reason, a concave lens is referred to as a diverging lens.
Part A: Consider the following diagrams, where F represents the focal point of a concave lens. In these diagrams, the image formed by the lens is obtained using the ray tracing technique. Which diagrams are accurate?(Figure 1)
*Type A if you think that only diagram A is correct, type AB if you think that only diagrams A and B are correct, and so on.
Part B: If the focal length of the concave lens is -7.50 cm , at what distance d_o from the lens should an object be placed so that its image is formed 3.70 cm from the lens?
A concave lens refracts parallel rays in such a way that they are bent away from the axis of the lens. For this reason, a concave lens is referred to as a diverging lens.
Part C: What is the magnification m produced by the concave lens described in Part B? (Expressed numerically)
Part D: Where should the object be moved to have a larger magnification?
The object should be moved closer to the lens.
The object should be moved farther from the lens.
The object should be moved to the focal point of the lens.
The object should not be moved closer to the lens than the focal point.
Chapter 10 Solutions
Tutorials in Introductory Physics
Ch. 10.1 - Prob. 1aTCh. 10.1 - Predict how each of the following changes would...Ch. 10.1 - A mask with a circular hole is placed between a...Ch. 10.1 - What do your observations suggest about the path...Ch. 10.1 - Imagine that you held a string of closely spaced...Ch. 10.1 - The mask used in parts C-E is replaced by one that...Ch. 10.1 - Prob. 1gTCh. 10.1 - Predict what you would see on the screen when an...Ch. 10.1 - Predict the size of the lit region on the screen...Ch. 10.1 - Suppose that the bulb were replaced by a long...
Ch. 10.1 - Prob. 2cTCh. 10.1 - Predict what you would see on the screen at the...Ch. 10.1 - Suppose that the light from the top bulb in the...Ch. 10.1 - Predict what you would see on the screen in the...Ch. 10.2 - Close one eye and lean down so that your open eye...Ch. 10.2 - Suppose that you placed your finger behind the...Ch. 10.2 - Prob. 1cTCh. 10.2 - Prob. 1dTCh. 10.2 - Place your head so that you can see the image of...Ch. 10.2 - Move the nail off w the right side of the mirror...Ch. 10.2 - Prob. 3aTCh. 10.2 - Turn the large sheet of paper over (or obtain a...Ch. 10.2 - Remove the mirror and the object nail. For each...Ch. 10.2 - On the diagram at right, draw one ray from the pin...Ch. 10.2 - Prob. 4bTCh. 10.2 - Determine the image location using the method of...Ch. 10.3 - A pin is placed In front of a cylindrical mirror...Ch. 10.3 - Could you use any two rays (even those that do not...Ch. 10.3 - Observers at M and N arc looking at an image of...Ch. 10.3 - Stick a pin into a piece of cardboard and place...Ch. 10.3 - Gradually decrease the angle between the mirrors...Ch. 10.4 - Prob. 1bTCh. 10.4 - Three students are discussing their results from...Ch. 10.4 - For each case shown below, determine and label the...Ch. 10.4 - In each of the previous cases, predict what would...Ch. 10.4 - Prob. 2cTCh. 10.4 - Explain how you can use a screen to determine the...Ch. 10.5 - Look at very distant object through a convex lens....Ch. 10.5 - Consider a point on the distant object that is...Ch. 10.5 - Suppose that you placed a very small bulb at the...Ch. 10.5 - Consider the ray chai is parallel to the principal...Ch. 10.5 - Consider the ray that goes through the focal point...Ch. 10.5 - How can you use these two rays to determine the...Ch. 10.5 - Consider the ray from the easer that strikes the...Ch. 10.5 - Draw the continuation of the two remaining rays...Ch. 10.5 - Prob. 2fTCh. 10.5 - The diagram below shows a small object placed near...Ch. 10.5 - A lens, a bulb, and a screen are arranged as shown...Ch. 10.5 - Obtain the necessary equipment and check your...Ch. 10.5 - Prob. 3cTCh. 10.6 - The diagram at right illustrates what an observer...Ch. 10.6 - Obtain two soda cans and a cardboard tube that has...Ch. 10.6 - Could an observer at each of the labeled points...Ch. 10.6 - Use the above diagram to answer the following...Ch. 10.6 - Obtain convex lens. Use the lens as a magnifying...Ch. 10.6 - Draw a ray diagram that shows how to determine the...Ch. 10.6 - The lateral magnification, m1 , is defined as...Ch. 10.6 - The angular magnification, m , is defined as m= ,...
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