University Physics Volume 317th EditionWilliam Moebs, Jeff Sanny Publisher: OpenStaxISBN: 9781938168185
University Physics Volume 3
Solutions for University Physics Volume 3
Problem 1CQ:
What are the differences between real and virtual images? How can you tell (by looking) whether an...Problem 2CQ:
Can you see a virtual image? Explain your response.Problem 3CQ:
Can you photograph a virtual image?Problem 4CQ:
Can you project a virtual image onto a screen?Problem 6CQ:
Devise an arrangement of mirrors allowing you to see the back of your head. What is the minimum...Problem 7CQ:
If you wish to see your entire body in a flat mirror (from head to toe), how tall should the mirror...Problem 9CQ:
Under what circumstances will an image be located at the focal point of a spherical lens or mirror?Problem 10CQ:
What is meant by a negative magnification? What is meant by a magnification whose absolute value is...Problem 11CQ:
Can an image be larger than the object even though its magnification is negative? Explain.Problem 13CQ:
Use a ruler and a protractor to find the image by refraction in the following cases. Assume an...Problem 14CQ:
You can argue that a that piece of glass, such as in a window, is like a lens with an infinite focal...Problem 15CQ:
When you focus a camera, you adjust the distance of the lens from the film. If the camera lens acts...Problem 16CQ:
A thin lens has two focal points, one on either side of the lens at equal distances from its center,...Problem 18CQ:
If the lens of a person’s eye is removed because of cataracts (as has been done since ancient...Problem 19CQ:
When laser light is shone into a relaxed normal-vision eye to repair a tear by spot-welding the...Problem 20CQ:
Why is your vision so blurry when you open your eyes while swimming under water? How does a face...Problem 21CQ:
It has become common to replace the cataract-clouded lens of the eye with an internal lens. This...Problem 22CQ:
If the cornea is to be reshaped (this can be done surgically or with contact lenses) to correct...Problem 23CQ:
Geometric optics describes the interaction of light with macroscopic objects. Why, then, is it...Problem 24CQ:
The image produced by the microscope in Figure 2.38 cannot be projected. Could extra lenses or...Problem 25CQ:
If you want your microscope or telescope to project a real image onto a screen, how would you change...Problem 26P:
Consider a pair of flat mirrors that are positioned so that they form an angle of 120 . An object is...Problem 27P:
Consider a pair of flat mirrors that are positioned so that they form an angle of 60 .. An object is...Problem 28P:
By using more than one flat mirror, construct a ray diagram showing how to create an inverted image.Problem 29P:
The following figure shows a light bulb between two spherical mirrors. One mirror produces a beam of...Problem 30P:
Why are diverging mirrors often used for rearview mirrors in vehicles? What is the main disadvantage...Problem 31P:
Some telephoto cameras use a mirror rather than a ens. What radius of curvature mirror is needed to...Problem 32P:
Calculate the focal length of a mirror formed by the shiny back of a spoon that has a 3.00 cm radius...Problem 33P:
Electric room heaters use a concave mirror to reflect infrared (IR) radiation from hot coils. Note...Problem 34P:
Find the magnification of the heater element in the previous problem. Note that its large magnitude...Problem 35P:
What is the focal length of a makeup mirror that produces a magnification of 1.50 when a person’s...Problem 36P:
A shopper standing 3.00 m from a convex security mirror sees his image with a magnification of...Problem 37P:
An object 1.50 cm high is held 3.00 cm from a person’s cornea, and its reflected image is measured...Problem 38P:
Ray tracing for a flat mirror shows that the image is located a distance behind the mirror equal to...Problem 39P:
Show that, for a flat mirror, hi=ho, given that the image is the same distance behind the mirror as...Problem 40P:
Use the law of reflection to prove that the focal length of a mirror is half its radius of...Problem 41P:
Referring to the electric room heater considered in problem 5, calculate the intensity of IR...Problem 42P:
Two mirrors are inclined at an angle of 60 ° and an object is placed at a point that is equidistant...Problem 43P:
Two parallel mirrors are facing each other and are separated by a distance of 3 cm. A point object...Problem 44P:
An object is located in air 30 cm from the vertex of a concave surface made of glass with a radius...Problem 45P:
An object is located in air 30 cm from the vertex of a convex surface made of glass with a radius of...Problem 46P:
An object is located in water 15 cm from the vertex of a concave surface made of glass with a radius...Problem 47P:
An object is located in water 30 cm from the vertex of a convex surface made of Plexiglas with a...Problem 48P:
An object is located in air 5 cm from the vertex of a concave surface made of glass with a radius of...Problem 49P:
Derive the spherical interface equation for refraction at a concave surface. (Hint: Follow the...Problem 50P:
How far from the lens must the film in a camera be, if the lens has a 35.0-mm focal length and is...Problem 51P:
A certain slide projector has a 100 mm-focal length lens. (a) How far away is the screen if a slide...Problem 52P:
A doctor examines a mole with a 15.0-cm focal length magnifying glass held 13.5 cm from the mole....Problem 53P:
A camera with a 50.0-mm focal length lens is being used to photograph a person standing 3.00 m away....Problem 54P:
A camera lens used for taking close-up photographs has a focal length of 22.0 mm. The farthest it...Problem 55P:
Suppose your 50.0 mm-focal length camera lens is 51.0 mm away from the film in the camera. (a) How...Problem 56P:
What is the focal length of a magnifying glass that produces a magnification of 3.00 when held 5.00...Problem 57P:
The magnification of a book held 7.50 cm from a 10.0 cm-focal length lens is 3.00. (a) Find the...Problem 58P:
Suppose a 200 mm-focal length telephoto lens is being used to photograph mountains 10.0 km away. (a)...Problem 59P:
A camera with a 100 mm-focal length lens is used to photograph the sun. What is the height of the...Problem 60P:
Use the thin—lens equation to show that the magnification for a thin lens is determined by its focal...Problem 61P:
An object of height 3.0 cm is placed 5.0 cm in front of a converging lens of focal length 20 cm and...Problem 62P:
An object of height 3.0 cm is placed at 5.0 cm in front of a diverging lens of focal length 20 cm...Problem 63P:
Au object of height 3.0 cm is placed at 25 cm in front of a diverging lens of focal length 20 cm....Problem 64P:
Two convex lenses of focal lengths 20 cm and 10 cm are placed 30 cm apart, with the lens with the...Problem 67P:
The print in many books averages 3.50 mm in height. How high is the image of the print on the retina...Problem 68P:
Suppose a certain person’s visual acuity is such that he can see objects clearly that form an image...Problem 69P:
People who do very detailed work close up, such as jewelers, often can see objects clearly at much...Problem 72P:
(a) A laser reshaping the cornea of a myopic patient reduces the power of his eye by 9.00 D, with a...Problem 73P:
The power for normal close vision is 54.0 D. In a vision-correction procedure, the power of a...Problem 74P:
For normal distant vision, the eye has a power of 50.0 D. What was the previous far point of a...Problem 75P:
The power for normal distant vision is 50.0 D. A severely myopic patient has a far point of 5.00 cm....Problem 76P:
A student’s eyes, while reading the blackboard, have a power of 51.0 D. How far is the board from...Problem 77P:
The power of a physician’s eyes is 53.0 D while examining a patient. How far from her eyes is the...Problem 78P:
The normal power for distant vision is 50.0 D. A young woman with normal distant vision has a 10.0%...Problem 79P:
The far point of a myopic administrator is 50.0 cm. (a) What is the relaxed power of his eyes? (b)...Problem 80P:
A very myopic man has a far point of 20.0 cm. What power contact lens (when on the eye) will correct...Problem 82P:
A myopic person sees that her contact lens prescription is —4.00 D. What is her far point?Problem 84P:
The contact lens prescription for a mildly farsighted person is 0.750 D, and the person has a near...Problem 85P:
If the image formed on the retina subtends an angle of 30and the object subtends an angle of 5, what...Problem 86P:
What is the magnification of a magnifying lens with a focal length of 10 cm if it is held 3.0 cm...Problem 87P:
How far should you hold a 2.1 cm-focal length magnifying glass from an object to obtain a...Problem 88P:
You hold a 5.0 cm-focal length magnifying glass as close as possible to your eye. If you have a...Problem 89P:
You view a mountain with a magnifying glass of focal length f = 10 cm . What is the magnification?Problem 90P:
You view an object by holding a 2.5 cm-focal length magnifying glass 10 cm away from it. How far...Problem 91P:
A magnifying glass forms an image 10 cm on the opposite side of the lens from the object, which is...Problem 92P:
An object viewed with the naked eye subtends a 2° angle. If you view the object through a 10 x...Problem 93P:
For a normal, relaxed eye, a magnifying glass produces an angular magnification of 4.0. What is the...Problem 95P:
A magnifying glass produces an angular magnification of 4.5 when used by a young person with a near...Problem 96P:
A microscope with an overall magnification of 800 has an objective that magnifies by 200. (a) What...Problem 97P:
(a) What magnification is produced by a 0.150 cm-focal length microscope objective that is 0.155 cm...Problem 98P:
Where does an object need to be placed relative to a microscope for its 0.50 cm-focal length...Problem 99P:
An amoeba is 0.305 cm away from the 0.300 cm- focal length objective lens of a microscope. (a) Where...Problem 100P:
Unreasonable Results Your friends show you an image through a microscope. They tell you that the...Problem 101P:
What is the angular magnification of a telescope that has a 100 cm-focal length objective and a 2.50...Problem 102P:
Find the distance between the objective and eyepiece lenses in the telescope in the above problem...Problem 103P:
A large reflecting telescope has an objective mirror with a 10.0-rn radius of curvature. What...Problem 104P:
A small telescope has a concave mirror with a 2.00-rn radius of curvature for its objective. Its...Problem 105P:
A 7.5 binocular produces an angular magnification of —7.50, acting like a telescope. (Mirrors are...Problem 106P:
Construct Your Own Problem Consider a telescope of the type used by Galileo, having a convex...Problem 107P:
Trace rays to find which way the given ray will emerge after refraction through the thin lens in the...Problem 108P:
Copy and draw rays to find the final image in the following diagram. (Hint: Find the intermediate...Problem 109P:
A concave mirror of radius of curvature 10 cm is placed 30 cm from a thin convex lens of focal...Problem 110P:
An object of height 3 cm is placed at 25 cm in front of a converging lens of focal length 20 cm....Problem 111P:
An object of height 3 cm is placed at a distance of 25 cm in front of a converging lens of focal...Problem 112P:
An object of height 2 cm is placed at 50 cm in front of a diverging lens of focal length 40 cm....Problem 113P:
Two concave mirrors are placed facing each other. One of them has a small hole in the middle. A...Problem 114P:
A lamp of height S cm is placed 40 cm in front of a converging lens of focal length 20 cm. There is...Problem 115P:
Parallel rays from a faraway source strike a converging lens of focal length 20 cm at an angle of 15...Problem 116P:
Parallel rays from a faraway source strike a diverging lens of focal length 20 cm at an angle of 10...Problem 117P:
A light bulb is placed 10 cm from a plane mirror, which faces a convex mirror of radius of curvature...Problem 118P:
A point source of light is 50 cm in front of a converging lens of focal length 30 cm. A concave...Problem 119P:
Copy and trace to find how a horizontal ray from S comes out after the lens. Use nglass=1.5for the...Problem 120P:
Copy and trace how a horizontal ray from S comes out after the lens. Use n=1.55 for the glass.Problem 121P:
Copy and draw rays to figure out the final image.Problem 122P:
By ray tracing or by calculation, find the place inside the glass where rays from S converge as a...Problem 123P:
A diverging lens has a focal length of 20 cm. What is the power of the lens in diopters?Problem 124P:
Two lenses of focal lengths of f1and f2are glued together with transparent material of negligible...Problem 126P:
What will be the formula for the angular magnification of a convex lens of focal length f if the eye...Problem 127AP:
Use a ruler and a protractor to draw rays to find images in the following cases. (a) A point object...Problem 128AP:
Where should a 3 cm tall object be placed in front of a concave minor of radius 20 cm so that its...Problem 129AP:
A 3 cm tall object is placed 5 cm in front of a convex mirror of radius of curvature 20 cm. Where is...Problem 130AP:
You are looking for a mirror so that you can see a four- fold magnified virtual image of an object...Problem 131AP:
Derive the following equation for a convex mirror: 1VO1VI=1VF where VO is the distance to the object...Problem 132AP:
(a) Draw rays to form the image of a vertical object on the optical axis and farther than the focal...Problem 133AP:
Use another ray-tracing diagram for the same situation as given in the previous problem to derive...Problem 134AP:
You photograph a 2.0-m-tall person with a camera that has a 5.0 cm-focal length lens. The image on...Problem 135AP:
Find the focal length of a thin plano-convex lens. The front surface of this lens is flat, and the...Problem 136AP:
Find the focal length of a meniscus lens with R1=20cmand R2=15cm . Assume that the index of...Problem 137AP:
A nearsighted man cannot see objects clearly beyond 20 cm from his eyes. How close must he stand to...Problem 138AP:
A mother sees that her child’s contact lens prescription is 0.750 D. What is the child’s near point?Problem 140AP:
The contact-lens prescription for a nearsighted person is —4.00 D and the person has a far point of...Problem 141AP:
Unreasonable Results A boy has a near point of 50 cm and a far point of 500 cm. Will a —4.00 D lens...Problem 142AP:
Find the angular magnification of an image by a magnifying glass of f = 5.0 cm if the object is...Problem 143AP:
Let objective and eyepiece of a compound microscope have focal lengths of 2.5 cm and 10 cm,...Problem 144AP:
Draw rays to scale to locate the image at the retina if the eye lens has a focal length 2.5 cm and...Problem 145AP:
The objective and the eyepiece of a microscope have the focal lengths 3 cm and 10 cm respectively....Problem 146AP:
A far-sighted person has a near point of 100 cm. How far in front or behind the retina does the...Problem 147AP:
A near-sighted person has afar point of 80 cm. (a) What kind of corrective lens the person will need...Problem 148AP:
In a reflecting telescope the objective is a concave mirror of radius of curvature 2m and an...Problem 149AP:
Two stars that are 109km apart are viewed by a telescope and found to be separated by an angle of...Browse All Chapters of This Textbook
Chapter 1 - The Nature Of LightChapter 2 - Geometric Optics And Image FormationChapter 3 - InterferenceChapter 4 - DiffractionChapter 5 - RelativityChapter 6 - Photons And Matter WavesChapter 7 - Quantum MechanicsChapter 8 - Atomic StructureChapter 9 - Condensed Matter PhysicsChapter 10 - Nuclear Physics
Book Details
University Physics is a three-volume collection that meets the scope and sequence requirements for two- and three-semester calculus-based physics courses. Volume 1 covers mechanics, sound, oscillations, and waves. Volume 2 covers thermodynamics, electricity and magnetism, and Volume 3 covers optics and modern physics. This textbook emphasizes connections between between theory and application, making physics concepts interesting and accessible to students while maintaining the mathematical rigor inherent in the subject. Frequent, strong examples focus on how to approach a problem, how to work with the equations, and how to check and generalize the result.
Sample Solutions for this Textbook
We offer sample solutions for University Physics Volume 3 homework problems. See examples below:
More Editions of This Book
Corresponding editions of this textbook are also available below:
UNIVERSITY PHYSICS VOL.3 (OER)
17th Edition
ISBN: 9781506698250
UNIVERSITY PHYSICS,VOL.3 (OER)
17th Edition
ISBN: 2810020283905
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