New Semester
Started
Get
50% OFF
Study Help!
--h --m --s
Claim Now
Question Answers
Textbooks
Find textbooks, questions and answers
Oops, something went wrong!
Change your search query and then try again
S
Books
FREE
Study Help
Expert Questions
Accounting
General Management
Mathematics
Finance
Organizational Behaviour
Law
Physics
Operating System
Management Leadership
Sociology
Programming
Marketing
Database
Computer Network
Economics
Textbooks Solutions
Accounting
Managerial Accounting
Management Leadership
Cost Accounting
Statistics
Business Law
Corporate Finance
Finance
Economics
Auditing
Tutors
Online Tutors
Find a Tutor
Hire a Tutor
Become a Tutor
AI Tutor
AI Study Planner
NEW
Sell Books
Search
Search
Sign In
Register
study help
physics
modern physics
Physics 5th edition James S. Walker - Solutions
(a) What object distance is required to give an image with a magnification of +2.0? Assume that the focal length of the lens is +5.0 cm. (b) What is the location of the image in this case?
Suppose the convex lens is replaced with a concave lens with a focal length of -5.0 cm. (a) Where must the object be placed to form an image with a magnification of 0.50? (b) What is the location of the image in this case? (c) If we now move the object closer to the lens, does the magnification
(a) How rapidly does the distance between you and your mirror image decrease if you walk directly toward a mirror with a speed of 2.9 m/s? (b) Repeat part (a) for the case in which you walk toward a mirror but at an angle of 32° to its normal.
You are 1.8 m tall and stand 2.8 m from a plane mirror that extends vertically upward from the floor. On the floor 1.0 m in front of the mirror is a small table, 0.80 m high. What is the minimum height the mirror must have for you to be able to see the top of the table in the mirror?
The rear window in a car is approximately a rectangle, 1.7 m wide and 0.45 m high. The inside rearview mirror is 0.50 m from the driver's eyes, and 1.90 m from the rear window. What are the minimum dimensions for the rearview mirror if the driver is to be able to see the entire width and height of
You hold a small plane mirror 0.50 m in front of your eyes, as shown in FIGURE 26-61 (not to scale). The mirror is 0.32 m high, and in it you see the image of a tall building behind you.In figure 26-61(a) If the building is 95 m behind you, what vertical height of the building, H, can be seen in
Two rays of light converge toward each other, as shown in FIGURE 26-62, forming an angle of 27°. Before they intersect, however, they are reflected from a circular plane mirror with a diameter of 11 cm. If the mirror can be moved horizontally to the left or right, what is the greatest possible
Astronomers often use large mirrors in their telescopes to gather as much light as possible from faint distant objects. Should the mirror in their telescopes be concave or convex? Explain.
A section of a sphere has a radius of curvature of 0.72 m. If this section is painted with a reflective coating on both sides, what is the focal length of (a) The convex side (b) The concave side?
A mirrored-glass gazing globe in a garden is 31.9 cm in diameter. What is the focal length of the globe?
The angle between the Sun and a rescue aircraft is 54°. What should be the angle of incidence for sunlight on a plane mirror so that the rescue pilot sees the reflected light?
Sunlight reflects from a concave piece of broken glass, converging to a point 18 cm from the glass. What is the radius of curvature of the glass?
You hold a shiny tablespoon at arm's length and look at the back side of the spoon. (a) Is the image you see of yourself upright or inverted? (b) Is the image enlarged or reduced? (c) Is the image real or virtual?
You hold a shiny tablespoon at arm's length and look at the front side of the spoon. (a) Is the image you see of yourself upright or inverted? (b) Is the image enlarged or reduced? (c) Is the image real or virtual?
An object is placed to the left of a concave mirror, beyond its focal point. In which direction will the image move when the object is moved farther to the left?
An object is placed to the left of a convex mirror. In which direction will the image move when the object is moved farther to the left?
A small object is located 36.0 cm in front of a concave mirror with a radius of curvature of 48.0 cm. Where will the image be formed?
An object with a height of 33 cm is placed 2.0 m in front of a concave mirror with a focal length of 0.75 m. (a) Determine the approximate location and size of the image using a ray diagram. (b) Is the image upright or inverted?
An object with a height of 33 cm is placed 2.0 m in front of a convex mirror with a focal length of - 0.75 m. (a) Determine the approximate location and size of the image using a ray diagram. (b) Is the image upright or inverted?
Find the location and magnification of the image produced by the mirror in Problem 26 using the mirror and magnification equations. In problem 26 An object with a height of 33 cm is placed 2.0 m in front of a concave mirror with a focal length of 0.75 m.
Find the location and magnification of the image produced by the mirror in Problem 27 using the mirror and magnification equations. In problem 27 An object with a height of 33 cm is placed 2.0 m in front of a convex mirror with a focal length of -0.75 m.
The reflecting surfaces of two mirrors form a vertex with an angle of 110°. If a ray of light strikes mirror 1 with an angle of incidence of 45°, find the angle of reflection of the ray when it leaves mirror 2.
During a daytime football game you notice that a player's reflective helmet forms an image of the Sun 4.8 cm behind the surface of the helmet. What is the radius of curvature of the helmet, assuming it to be roughly spherical?
A convex mirror on the passenger side of a car produces an image of a vehicle that is 18.3 m from the mirror. If the image is located 55.4 cm behind the mirror, what is the radius of curvature of the mirror?
A magician wishes to create the illusion of a 2.74-m-tall elephant. He plans to do this by forming a virtual image of a 50.0-cm-tall model elephant with the help of a spherical mirror. (a) Should the mirror be concave or convex? (b) If the model must be placed 3.00 m from the mirror, what radius
A person 1.8 m tall stands 0.86 m from a reflecting globe in a garden. (a) If the diameter of the globe is 18 cm, where is the image of the person, relative to the surface of the globe? (b) How large is the person's image?
Shaving>makeup mirrors typically have one flat and one concave (magnifying) surface. You find that you can project a magnified image of a lightbulb onto the wall of your bathroom if you hold the mirror 1.8 m from the bulb and 3.5 m from the wall. (a) What is the magnification of the image? (b) Is
The 200-inch-diameter concave mirror of the Hale telescope on Mount Palomar has a focal length of 16.9 m. An astronomer stands 20.0 m in front of this mirror. (a) Where is her image located? Is it in front of or behind the mirror? (b) Is her image real or virtual? How do you know? (c) What is
A concave mirror produces a virtual image that is three times as tall as the object. (a) If the object is 16 cm in front of the mirror, what is the image distance? (b) What is the focal length of this mirror?
A concave mirror produces a real image that is three times as large as the object. (a) If the object is 22 cm in front of the mirror, what is the image distance? (b) What is the focal length of this mirror?
The virtual image produced by a convex mirror is one-third the size of the object. (a) If the object is 27 cm in front of the mirror, what is the image distance? (b) What is the focal length of this mirror?
You view a nearby tree in a concave mirror. The inverted image of the tree is 4.8 cm high and is located 7.0 cm in front of the mirror. If the tree is 28 m from the mirror, what is its height?
A ray of light reflects from a plane mirror with an angle of incidence of 27°. If the mirror is rotated by an angle θ, through what angle is the reflected ray rotated?
A shaving/makeup mirror produces an erect image that is magnified by a factor of 2.2 when your face is 25 cm from the mirror. What is the mirror's radius of curvature?
A concave mirror with a focal length of 36 cm produces an image whose distance from the mirror is one-third the object distance. Find the object and image distances.
When a ray of light enters a glass lens surrounded by air, it slows down. (a) As it leaves the glass, does its speed increase, decrease, or stay the same? (b) Choose the best explanation from among the following: I. Its speed increases because the ray is now propagating in a medium with a smaller
A humorous scene in Akira Kurosawa's classic film The Seven Samurai shows the young samurai Kikuchiyo wading into a small stream and plucking a fish from it for his dinner.(a) As Kikuchiyo looks through the water to the fish, does he see it in the general direction of point 1 or point 2 in FIGURE
(a) Imagine for a moment that the Earth has no atmosphere. Over the period of a year, is the number of daylight hours at your home greater than, less than, or equal to the number of nighttime hours? (b) Repeat part (a), only this time take into account the Earth's atmosphere.
A kitchen has twin side-by-side sinks. One sink is filled with water, the other is empty. (a) Does the sink with water appear to be deeper, shallower, or the same depth as the empty sink? (b) Choose the best explanation from among the following: I. The sink with water appears deeper because you
Light travels a distance of 0.902 m in 4.00 ns in a given substance. What is the index of refraction of this substance?
Light enters a container of benzene at an angle of 43° to the normal; the refracted beam makes an angle of 27° with the normal. Calculate the index of refraction of benzene.
The angle of refraction of a ray of light traveling into an ice cube from air is 46°. Find the angle of incidence.
One of the many works published by the Greek astronomer Ptolemy (A.D. ca. 100-170) was Optics. In this book Ptolemy reports the results of refraction experiments he conducted by observing light passing from air into water. His results are as follows: angle of incidence = 10.0°, angle of refraction
A small vertical mirror hangs on the wall, 1.40 m above the floor. Sunlight strikes the mirror, and the reflected beam forms a spot on the floor 2.50 m from the wall. Later in the day, you notice that the spot has moved to a point 3.75 m from the wall. (a) Were your two observations made in the
A submerged scuba diver looks up toward the calm surface of a freshwater lake and notes that the Sun appears to be 35° from the vertical. The diver's friend is standing on the shore of the lake. At what angle above the horizon does the friend see the sun?
A pond with a total depth (ice + water) of 3.25 m is covered by a transparent layer of ice, with a thickness of 0.38 m. Find the time required for light to travel vertically from the surface of the ice to the bottom of the pond.
Light is refracted as it travels from a point A in medium 1 to a point B in medium 2. If the index of refraction is 1.33 in medium 1 and 1.51 in medium 2, how much time does it take for light to go from A to B, assuming it travels 331 cm in medium 1 and 151 cm in medium 2?
You have a semicircular disk of glass with an index of refraction of n = 1.52. Find the incident angle θ for which the beam of light in FIGURE 26-64 will hit the indicated point on the screen.In figure 26-64
The observer in FIGURE 26-65 is positioned so that the far edge of the bottom of the empty glass (not to scale) is just visible. When the glass is filled to the top with water, the center of the bottom of the glass is just visible to the observer. Find the height, H, of the glass, given that its
A coin is lying at the bottom of a pool of water that is 5.5 feet deep. Viewed from directly above the coin, how far below the surface of the water does the coin appear to be? (The coin is assumed to be small in diameter; therefore, we can use the small-angle approximations sin θ ≅ tan θ ≅
A ray of light enters the long side of a 45°-90°-45° prism and undergoes two total internal reflections, as indicated in FIGURE 26-66.In figure 26-66.The result is a reversal in the ray's direction of propagation. Find the minimum value of the prism's index of refraction, n, for these
A glass paperweight with an index of refraction n rests on a desk, as shown in FIGURE 26-67. An incident ray of light enters the horizontal top surface of the paperweight at an angle θ = 77° to the vertical.In figure 26-67(a) Find the minimum value of n for which the internal reflection on
Suppose the glass paperweight in Figure 26-67 has an index of refraction n = 1.38.In figure 26-67(a) Find the value of u for which the reflection on the vertical surface of the paperweight exactly satisfies the condition for total internal reflection.(b) If u is increased, is the reflection at the
While studying physics at the library late one night, you notice the image of the desk lamp reflected from the varnished tabletop. When you turn your Polaroid sunglasses sideways, the reflected image disappears. If this occurs when the angle between the incident and reflected rays is 110°, what is
Sunlight enters a room at an angle of 32° above the horizontal and reflects from a small mirror lying flat on the floor. The reflected light forms a spot on a wall that is 2.0 m behind the mirror, as shown in FIGURE 26-58. If you now place a pencil under the edge of the mirror nearer the wall,
A horizontal beam of light enters a 45°-90°-45° prism at the center of its long side, as shown in FIGURE 26-68. The emerging ray moves in a direction that is 34° below the horizontal. What is the index of refraction of this prism?In figure 26-68
A laser beam enters one of the sloping faces of the equilateral glass prism 1n = 1.422 in FIGURE 26-69 and refracts through the prism. Within the prism the light travels horizontally. What is the angle u between the direction of the incident ray and the direction of the outgoing ray?In figure 26-69
(a) Use a ray diagram to determine the approximate location of the image produced by a concave lens when the object is at a distance 1/2 |ƒ| from the lens.(b) Is the image upright or inverted?(c) Is the image real or virtual? Explain.
(a) Use a ray diagram to determine the approximate location of the image produced by a concave lens when the object is at a distance 2 |ƒ| from the lens.(b) Is the image upright or inverted?(c) Is the image real or virtual? Explain.
An object is a distance ƒ > 2 from a convex lens.(a) Use a ray diagram to find the approximate location of the image.(b) Is the image upright or inverted?(c) Is the image real or virtual? Explain.
An object is a distance 2ƒ from a convex lens.(a) Use a ray diagram to find the approximate location of the image.(b) Is the image upright or inverted?(c) Is the image real or virtual? Explain.
Two lenses that are 35 cm apart are used to form an image, as shown in FIGURE 26-70. Lens 1 is converging and has a focal length Æ’1 = 14 cm; lens 2 is diverging and has a focal length Æ’2 = -7.0 cm. The object is placed 24 cm to the left of lens 1.In figure 26-70(a) Use a ray
Two lenses that are 35 cm apart are used to form an image, as shown in FIGURE 26-71. Lens 1 is diverging and has a focal length Æ’1 = -7.0 cm; lens 2 is converging and has a focal length Æ’2 = 14 cm. The object is placed 24 cm to the left of lens 1.In figure 26-71(a) Use a ray
A convex lens is held over a piece of paper outdoors on a sunny day. When the paper is held 26 cm below the lens, the sunlight is focused on the paper and the paper ignites. What is the focal length of the lens?
A concave lens has a focal length of -39 cm. Find the image distance and magnification that result when an object is placed 31 cm in front of the lens.
You stand 1.50 m in front of a wall and gaze downward at a small vertical mirror mounted on it. In this mirror you can see the reflection of your shoes. If your eyes are 1.85 m above your feet, through what angle should the mirror be tilted for you to see your eyes reflected in the mirror? (The
When an object is located 38 cm to the left of a lens, the image is formed 22 cm to the right of the lens. What is the focal length of the lens?
An object with a height of 2.54 cm is placed 36.3 mm to the left of a lens with a focal length of 35.0 mm. (a) Where is the image located? (b) What is the height of the image?
A lens for a digital camera has a focal length given by ƒ = 45.0 mm. (a) How close to the image sensor should the lens be placed to form a sharp image of an object that is 5.00 m away? (b) What is the magnification of the image on the sensor?
An object is located to the left of a convex lens whose focal length is 34 cm. The magnification produced by the lens is m = 3.0.(a) To increase the magnification to 4.0, should the object be moved closer to the lens or farther away? Explain.(b) Calculate the distance through which the object
You have two lenses at your disposal, one with a focal length ƒ1 = +40.0 cm, the other with a focal length ƒ2 = -40.0 cm.(a) Which of these two lenses would you use to project an image of a lightbulb onto a wall that is far away?(b) If you want to produce an image of the bulb that is enlarged by
(a) Determine the distance from lens 1 to the final image for the system shown in Figure 26-70.In figure 26-70(b) What is the magnification of this image?
(a) Determine the distance from lens 1 to the final image for the system shown in Figure 26-71.(b) What is the magnification of this image?In figure 26-71
An object is located to the left of a concave lens whose focal length is -34 cm. The magnification produced by the lens is m = 1/3(a) To decrease the magnification to m = 1/4, should the object be moved closer to the lens or farther away?(b) Calculate the distance through which the object should be
Albert is nearsighted, and without his eyeglasses he can focus only on objects less than 2.2 m away.(a) Are Albert's eyeglasses concave or convex? Explain.(b) To correct Albert's nearsightedness, his eyeglasses must produce a virtual, upright image at a distance of 2.2 m when viewing an infinitely
A small insect viewed through a convex lens is 1.8 cm from the lens and appears 2.5 times larger than its actual size. What is the focal length of the lens?
Standing 2.3 m in front of a small vertical mirror, you see the reflection of your belt buckle, which is 0.72 m below your eyes.(a) What is the vertical location of the mirror relative to the level of your eyes?(b) What angle do your eyes make with the horizontal when you look at the buckle?(c) If
A friend tells you that when he takes off his eyeglasses and holds them 23 cm above a printed page the image of the print is erect but reduced to 0.67 of its actual size. (a) Is the image real or virtual? How do you know? (b) What is the focal length of your friend's glasses? (c) Are the lenses
A friend tells you that when she takes off her eyeglasses and holds them 23 cm above a printed page the image of the print is erect but enlarged to 1.5 times its actual size.(a) Is the image real or virtual? How do you know?(b) What is the focal length of your friend's glasses?(c) Are the lenses in
Referring to Figure 26-52, which color, violet or red, travels more rapidly through water? Explain.In figure 26-52
You take a picture of a rainbow with an infrared camera, and your friend takes a picture at the same time with visible light. (a) Is the height of the rainbow in the infrared picture greater than, less than, or the same as the height of the rainbow in the visible-light picture? (b) Choose the
The index of refraction for red light in a certain liquid is 1.305; the index of refraction for violet light in the same liquid is 1.336. Find the dispersion (θv - θr) for red and violet light when both are incident from air onto the flat surface of the liquid at an angle of 45.00° to the normal.
A horizontal incident beam consisting of white light passes through an equilateral prism, like the one shown in Figure 26-69. What is the dispersion (θv - θr) of the outgoing beam if the prism's index of refraction is nv = 1.505 for violet light and nr = 1.421 for red
The focal length of a lens is inversely proportional to the quantity (n - 1), where n is the index of refraction of the lens material. The value of n, however, depends on the wavelength of the light that passes through the lens. For example, one type of flint glass has an index of refraction of nr
A T. rex chases the heroes of Steven Spielberg's Jurassic Park as they desperately try to escape in their Jeep. The T. rex is closing in fast, as they can see in the outside rearview mirror. Near the bottom of the mirror they also see the following helpful message: OBJECTS IN THE MIRROR ARE CLOSER
If a lens is immersed in water, its focal length changes, as discussed in Conceptual Example 26-17. (a) If a spherical mirror is immersed in water, does its focal length increase, decrease, or stay the same? (b) Choose the best explanation from among the following: I. The focal length will
A glass slab surrounded by air causes a sideways displacement in a beam of light. (a) If the slab is now placed in water, does the displacement it causes increase, decrease, or stay the same? (b) Choose the best explanation from among the following: I. The displacement of the beam increases
How many times does the light beam shown in FIGURE 26-59 reflect from(a) The top(b) The bottom mirror?In figure 26-59
Suppose we mold a hollow piece of plastic into the shape of a double concave lens. The "lens" is watertight, and its interior is filled with air. We now place this lens in water and shine a beam of light on it. (a) Does the lens converge or diverge the beam of light? Explain. (b) If our hollow
Standing 2.5 m in front of a small vertical mirror you see the reflection of your belt buckle, which is 0.70 m below your eyes. If you remain 2.5 m from the mirror but climb onto a stool, how high must the stool be to allow you to see your knees in the mirror? Assume that your knees are 1.2 m below
The Galileo thermometer, or Termometro Lentos (slow thermometer in Italian), consists of a vertical, cylindrical flask containing a fluid and several glass floats of different color. The floats all have the same dimensions, but they appear to differ in size depending on their location within the
(a) Find the two locations where an object can be placed in front of a concave mirror with a radius of curvature of 46.0 cm such that its image is twice its size.(b) In each of these cases, state whether the image is real or virtual, upright or inverted.
A convex mirror with a focal length of -85 cm is used to give a truck driver a view behind the vehicle. (a) If a person who is 1.7 m tall stands 2.2 m from the mirror, where is the person's image located? (b) Is the image upright or inverted? (c) What is the size of the image?
The three laser beams shown in FIGURE 26-73 meet at a point at the back of a solid, transparent sphere.In figure 26-73(a) What is the index of refraction of the sphere? (b) Is there a finite index of refraction that will make the three beams come to a focus at the center of the sphere? If your
A film of oil, with an index of refraction of 1.48 and a thickness of 1.50 cm, floats on a pool of water, as shown in FIGURE 26-74. A beam of light is incident on the oil at an angle of 60.0° to the vertical.In figure 26-74(a) Find the angle u the light beam makes with the vertical as it
FIGURE 26-75 shows a ray of light entering one end of an optical fiber at an angle of incidence θi = 50.0°. The index of refraction of the fiber is 1.62.In figure 26-75(a) Find the angle θ the ray makes with the normal when it reaches the curved surface of the fiber.(b) Show that the
Suppose the fiber depicted in Figure 26-75 has an index of refraction of 1.62 and its curved surface is surrounded by a cladding material with an index of refraction of 1.52.In figure 26-75(a) What is the critical angle for total internal reflection of rays at the fiber cladding boundary?(b) What
An arrow 2.00 cm long is located 75.0 cm from a lens that has a focal length Æ’ = 30.0 cm.(a) If the arrow is perpendicular to the principal axis of the lens, as in FIGURE 26-76 (a), what is its lateral magnification, defined as hi / ho?(b) Suppose, instead, that the arrow lies along the
When you open your eyes underwater, everything looks blurry. Can this be thought of as an extreme case of nearsightedness or farsightedness? Explain.
Does chromatic aberration occur in mirrors? Explain.
Showing 6200 - 6300
of 8241
First
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
Last
Step by Step Answers
Get 50% OFF
Claim Now
.png)
.png)
.png)
.png)
.png)
.png)
.png)
.png)
.png)
.png)
.png)
.png)
.png)
.png)
.png)
.png)
.png)
.png)
.png)
.png)
.png)
.png)
.png)
-1.png)
-2.png)
