2 Telescope One telescope design is to use a converging lens as the "objective" with focal length f₁ = 2m and a diverging lens as the "eye piece" with focal length f2= -0.2m. D Low 2 Objective Eyepiece the spacing between the lenses is D = 1.5m and the object is L=100m from the objective lens. a. Draw a ray tracing diagram of this setup. You may want lens will be a bit difficult as the image from the first wi traveling from left to right. Rays coming in parallel to the are deflected away from the focus of the second lens. The use the telescope to look at a galaxy we wouldn't expect the image inside our telescope to be the height of a galaxy.) draw it carefully with a ruler. (Hint: The second be to its right. Remember the light is actually xis like they were going to the intermediate image al image may be small, that's OK, after all if we b. Is the final image upright or inverted? c. Is the final image real or virtual? d. Find the location of the image crated by the objective lens. Give your answer relative the the objective lens. (i.e. find Sing) .The image of the object lens will become the object of the eyepiece. How far is the image of the objective lines form the eyepiece? Give the value as negative number since it is on the "wrong side of the lens. f. Find the location of the final image (relative to the eyepiece). Note that a negative answer means that it is to the left of the eyepiece.

2 Telescope One telescope design is to use a converging lens as the "objective" with focal length f₁ = 2m and a diverging lens as the "eye piece" with focal length f2= -0.2m. D Low 2 Objective Eyepiece the spacing between the lenses is D = 1.5m and the object is L=100m from the objective lens. a. Draw a ray tracing diagram of this setup. You may want lens will be a bit difficult as the image from the first wi traveling from left to right. Rays coming in parallel to the are deflected away from the focus of the second lens. The use the telescope to look at a galaxy we wouldn't expect the image inside our telescope to be the height of a galaxy.) draw it carefully with a ruler. (Hint: The second be to its right. Remember the light is actually xis like they were going to the intermediate image al image may be small, that's OK, after all if we b. Is the final image upright or inverted? c. Is the final image real or virtual? d. Find the location of the image crated by the objective lens. Give your answer relative the the objective lens. (i.e. find Sing) .The image of the object lens will become the object of the eyepiece. How far is the image of the objective lines form the eyepiece? Give the value as negative number since it is on the "wrong side of the lens. f. Find the location of the final image (relative to the eyepiece). Note that a negative answer means that it is to the left of the eyepiece.

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A camera lens used for taking close-up photographs has a focal length of 21 mm. The farthest it can be placed from the film is 33.3 mm. a. What is the closest object that can be photographed? mm b. What is the magnification of this closest object? X
+ Understanding Lenses Learning Goal: To learn the quantitative use of the lens equation, as well as how to determine qualitative properties of solutions. In working with lenses, there are three important quantities to consider. The object distance 8 is the distance along the axis of the lens to the object. The image distance s' is the distance along the axis of the lens to the image. The focal length f is an intrinsic property of the lens. These three quantities are related through the equation = + === Note that this equation is valid only for thin, spherical lenses. Unless otherwise specified, a lens problem always assumes that you are using thin, spherical lenses. The equation above allows you to calculate the locations of images and objects. Frequently, you will also be interested in the size of the image or object, particularly if you are considering a magnifying glass or microscope. The ratio of the size of an image to the size of the object is called the magnification. It is…
Anne's retina is 1.8 cm from the lens. The nearest object she can see clearly without corrective lenses is 2.0 m away. 1. Sketch a ray diagram to show (qualitatively) what happens when she tries to look at something closer than 2.0 m without corrective lenses. 2. What should the focal length of her contact lenses be so that she can see clearly objects as close as 20.0 cm from her eye?
A Woman has a far point 3.5 m from hear eyes. If she is to see distance objects clearly what does the lens she required? A.Concave lens, its focal length = 0.29 m. Convex lens, its focal length = 0.29 m. Convex lens, its focal length = 3.50 m, D.Concave lens, its focal length = 3.50 m. B. C.
Help with problem B
Part A A 1.2-cm-tall object is 78 cm in front of a diverging lens that has a -39 cm focal length. Calculate the image position. Express your answer to two significant figures and include the appropriate units. HÀ ? s' = Value Units Submit Request Answer Part B Calculate the image height. Express your answer to two significant figures and include the appropriate units. HA ? h' = Value Units Submit Request Answer
A-6.10-D lens is held 14.5 cm from an ant 1.00 mm high. Part A What is the position of the image? on the opposite side of the lens relative to the object on the same side of the lens with the object no image is formed Previous Answers ✓ Correct Part B Find the image distance. Follow the sign conventions. Express your answer to three significant figures and include the appropriate units. di = -7.69x10-² m Previous Answers ✓ Correct P Pearson Copyright © 2022 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions | Contact Us | MacBook Air
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