Solutions for UNIVERSITY PHYSICS,VOL.3 (OER)
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
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UNIVERSITY PHYSICS VOL.3 (OER)
17th Edition
ISBN: 9781506698250
University Physics Volume 3
17th Edition
ISBN: 9781938168185
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