Homework Answers
A.) We should make several measurements using different values and then use them to determine the f of the lens.
This is because one measurement will contain large error. If we take several measurements and take the average value of the focal length, then the error will be less and we will get the near exact f of the lens.
B.) As the object distance approaches the focal length of the lens, the image distance approaches towards infinity.
No, we should not measure the image distance when the object distance is near the focal length of the length of the lens because it would be impractical to measure such a large distance.
Add Answer to:
A)
B)
Screen Do you think it is better to make one measurement of each variable...
I have no idea how to do this. Will you please work it out and write...
I have no idea how to do this. Will you please work it out and
write neat enough to read? Thank you!
Prelab Questions Give the algebraic relationship between the focal length, the distance from the object to the lens or mirror, and the distance from the lens or mirror to the image. Thick Converging Lens As in part 1 of this lab, we're going to measure the focal length of a converging lens - a lens that is thicker...
Don't quite get questions 1-6 For lenses in combination, the image for the first lens is...
Don't quite get questions 1-6
For lenses in combination, the image for the first lens is the object for the second. The ray tracing diagram below shows how the rays travel through the system from object to first image/second object and then to second image. The first ray trace gives the location and size of the first image. A second ray trace is performed to find where the second object (which is the first image) creates the second image. It...
An object and a projector screen are separated by distance L. A lens of positive focal...
An object and a projector screen are separated by distance L. A lens of positive focal length fis used to make a real image of the object on the screen. There are two locations for the lens between the object and the screen that will do this. a) Show that the distance d between these two locations is given by d = L(L – 4f). b) Show that the ratio of the magnifications of the images produced when the lens...
o Consider a thin double concave lens, with each face having a radius of curvature of...
o Consider a thin double concave lens, with each face having a radius of curvature of 35 cm. The glass composing the lens has an index of refraction of 1.4 1.What is the focal length of this lens? 2.If an 1 cm object is placed at 1.5x the focal length, where is the image and how big is it, according to the thin lens equation? 3.Is the image real or virtual? Right side up? Hint: when sketching your ray diagram,...
Ask Your Teache My Notes 0/2 points| Previous Answers SerCP9 23.P037 The projection lens in a certain slide projector is a single thin lens. A slide 24.9 mm high is to be projected so that its im...
Ask Your Teache My Notes 0/2 points| Previous Answers SerCP9 23.P037 The projection lens in a certain slide projector is a single thin lens. A slide 24.9 mm high is to be projected so that its image fills a screen 1.84 m high. The slide-to-screen distance is 2.96 m. (a) Determine the focal length of the projection lens 37 What is the relationship between the slide-to-screen distance and the object and image distances? mm (b) How far from the slide...
You produce an image of the Sun on a screen using a thin lens whose focal...
You produce an image of the Sun on a screen using a thin lens whose focal length is 27.5 cm. What is the diameter of the image in millimeters? (Take the radius of the Sun to be 6.96 × 108 m and its distance to Earth to be 1.5 × 1011 m.)
2. Can you see a rtual image with your eye? Why is this possible? image telescope? How could you improve 3. Were this? sze you impressed with the magnification produced by your te 4. What w...
2. Can you see a rtual image with your eye? Why is this possible? image telescope? How could you improve 3. Were this? sze you impressed with the magnification produced by your te 4. What were the sources of error in this experiment? . Write the conclusions for this experiment. Focal Length of a Convex Lens Data Sheet Object height =1 . Sc m Data Table 1. Focal Length of Thin Convex Lens Objoc itance 0-9c 1-6cm m 2 8...
Part A: Investigation of lens behaviors using a distant object Go to a room that has...
Part A: Investigation of lens behaviors using a distant object Go to a room that has an outside window. With only the windows cracked open and all other lights off, use the reading glasses (or, more easily, the magnifying glass) and see if you can capture the light of something outside the window (perhaps a tree, or a light post or anything you can see outside the window) and “project” the captured light on to a screen (this screen can...
For safety reasons, you install a rear-window lens with a -0.296 m focal length in your...
For safety reasons, you install a rear-window lens with a -0.296 m focal length in your van. Before putting the van in reverse, you look through the lens and see the image of a person who appears to be 0.341 m tall and 0.235 m behind the van. Determine the following. (a) distance of the person behind the van -1.14 Can you write the thin lens equation which gives a relationship between the focal length of a lens, the object...
Worksheet 2 - Phys 231 - Optical Instruments 3. You can make a simple cell phone...
Worksheet 2 - Phys 231 - Optical Instruments 3. You can make a simple cell phone projector with a plane mirror angled at 45°, and a lens, to project images onto a screen. The diagram shows the locations of the mirror, a lens, and an arrow that represents the object which is a picture on you cell phone. Scale : O mark= 10cm (a) Show the image of the arrow in the mirror. (b) Find the focal length. f. of...
I have no idea how to do this. Will you please work it out and
write neat enough to read? Thank you!
Prelab Questions Give the algebraic relationship between the focal length, the distance from the object to the lens or mirror, and the distance from the lens or mirror to the image. Thick Converging Lens As in part 1 of this lab, we're going to measure the focal length of a converging lens - a lens that is thicker...
Don't quite get questions 1-6
For lenses in combination, the image for the first lens is the object for the second. The ray tracing diagram below shows how the rays travel through the system from object to first image/second object and then to second image. The first ray trace gives the location and size of the first image. A second ray trace is performed to find where the second object (which is the first image) creates the second image. It...
An object and a projector screen are separated by distance L. A lens of positive focal length fis used to make a real image of the object on the screen. There are two locations for the lens between the object and the screen that will do this. a) Show that the distance d between these two locations is given by d = L(L – 4f). b) Show that the ratio of the magnifications of the images produced when the lens...
o Consider a thin double concave lens, with each face having a radius of curvature of 35 cm. The glass composing the lens has an index of refraction of 1.4 1.What is the focal length of this lens? 2.If an 1 cm object is placed at 1.5x the focal length, where is the image and how big is it, according to the thin lens equation? 3.Is the image real or virtual? Right side up? Hint: when sketching your ray diagram,...
Ask Your Teache My Notes 0/2 points| Previous Answers SerCP9 23.P037 The projection lens in a certain slide projector is a single thin lens. A slide 24.9 mm high is to be projected so that its image fills a screen 1.84 m high. The slide-to-screen distance is 2.96 m. (a) Determine the focal length of the projection lens 37 What is the relationship between the slide-to-screen distance and the object and image distances? mm (b) How far from the slide...
2. Can you see a rtual image with your eye? Why is this possible? image telescope? How could you improve 3. Were this? sze you impressed with the magnification produced by your te 4. What were the sources of error in this experiment? . Write the conclusions for this experiment. Focal Length of a Convex Lens Data Sheet Object height =1 . Sc m Data Table 1. Focal Length of Thin Convex Lens Objoc itance 0-9c 1-6cm m 2 8...
For safety reasons, you install a rear-window lens with a -0.296 m focal length in your van. Before putting the van in reverse, you look through the lens and see the image of a person who appears to be 0.341 m tall and 0.235 m behind the van. Determine the following. (a) distance of the person behind the van -1.14 Can you write the thin lens equation which gives a relationship between the focal length of a lens, the object...
Worksheet 2 - Phys 231 - Optical Instruments 3. You can make a simple cell phone projector with a plane mirror angled at 45°, and a lens, to project images onto a screen. The diagram shows the locations of the mirror, a lens, and an arrow that represents the object which is a picture on you cell phone. Scale : O mark= 10cm (a) Show the image of the arrow in the mirror. (b) Find the focal length. f. of...
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