Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
12th Edition
ISBN: 9781259587399
Author: Eugene Hecht
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 39, Problem 31SP
A lens combination consists of two lenses with focal lengths of +4.0 cm and +8.0 cm, which are spaced 16 cm apart. Locate and describe the image of an object placed 12 cm in front of the +4.0-cm lens.
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Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
Ch. 39 - 39.14 [I] Two thin lenses having focal lengths of...Ch. 39 - 39.15 [I] A farsighted person who needs glasses...Ch. 39 - 39.16 [I] A farsighted person who needs glasses...Ch. 39 - Prob. 17SPCh. 39 - 39.18 [I] A farsighted person wears eyeglasses...Ch. 39 - Prob. 19SPCh. 39 - Prob. 20SPCh. 39 - 39.21 [II] A nearsighted man cannot see objects...Ch. 39 - 39.22 [II] A projection lens is employed to...Ch. 39 - 39.23 [II] A camera gives a life-size picture of a...
Ch. 39 - 39.24 [II] What is the maximum stop rating of a...Ch. 39 - Prob. 25SPCh. 39 - Prob. 26SPCh. 39 - 39.27 [II] In a compound microscope, the focal...Ch. 39 - 39.28 [II] A refracting astronomical telescope has...Ch. 39 - 39.29 [III] The large telescope at Mt. Palomar has...Ch. 39 - 39.30 [II] An astronomical telescope with an...Ch. 39 - 39.31 [II] A lens combination consists of two...Ch. 39 - 39.32 [II] Two lenses, of focal lengths +6.0 cm...Ch. 39 - 39.33 [II] A telephoto lens consists of a positive...Ch. 39 - 39.34 [II] An opera glass has an objective lens of...Ch. 39 - Prob. 35SPCh. 39 - Prob. 36SP
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- A converging lens made of crown glass has a focal length of 15.0 cm when used in air. If the lens is immersed in water, what is its focal length? (a) negative (b) less than 15.0 cm (c) equal to 15.0 cm (d) greater than 15.0 cm (e) none of those answersarrow_forwardYou view an object by holding a 2.5 cm-focal length magnifying glass 10 cm away from it. How far from your eye should you hold the magnifying glass to obtain a magnification of 10 ?arrow_forwardWhat is the magnification of a magnifying lens with a focal length of 10 cm if it is held 3.0 cm from the eye and the object is 12 cm from the eye?arrow_forward
- A lamp of height S cm is placed 40 cm in front of a converging lens of focal length 20 cm. There is a plane mirror 15 cm behind the lens. Where would you find the image when you look in the mirror?arrow_forwardUnder what circumstances will an image be located at the focal point of a spherical lens or mirror?arrow_forwardAn object of height 3 cm is placed at a distance of 25 cm in front of a converging lens of focal length 20 cm, to be referred to as the first lens. Behind the lens there is another converging lens of focal length 20 cm placed 10 cm from the first lens. There is a concave mirror of focal length 15 cm placed 50 cm from the second lens. Find the location, orientation, and size of the final image.arrow_forward
- What will be the angular magnification of a convex lens with the focal length 2.5 cm?arrow_forwardWhat will be the formula for the angular magnification of a convex lens of focal length f if the eye is very close to the lens and the near point is located a distance D from the eye?arrow_forwardHow far should you hold a 2.1 cm-focal length magnifying glass from an object to obtain a magnification of 10 x ? Assume you place your eye 5.0 cm from the magnifying glass.arrow_forward
- In Figure P26.38, a thin converging lens of focal length 14.0 cm forms an image of the square abcd, which is hc = hb = 10.0 cm high and lies between distances of pd = 20.0 cm and pa = 30.0 cm from the lens. Let a, b, c, and d represent the respective corners of the image. Let qa represent the image distance for points a and b, qd represent the image distance for points c and d, hb represent the distance from point b to the axis, and hc represent the height of c. (a) Find qa, qd, hb, and hc. (b) Make a sketch of the image. (c) The area of the object is 100 cm2. By carrying out the following steps, you will evaluate the area of the image. Let q represent the image distance of any point between a and d, for which the object distance is p. Let h represent the distance from the axis to the point at the edge of the image between b and c at image distance q. Demonstrate that h=10.0q(114.01q) where h and q are in centimeters. (d) Explain why the geometric area of the image is given by qaqdhdq (e) Carry out the integration to find the area of the image. Figure P26.38arrow_forwardAu object of height 3.0 cm is placed at 25 cm in front of a diverging lens of focal length 20 cm. Behind the diverging lens, there is a converging lens of focal length 20 cm. The distance between the lenses is 5.0 cm. Fluid the location and size of the final image.arrow_forward
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Convex and Concave Lenses; Author: Manocha Academy;https://www.youtube.com/watch?v=CJ6aB5ULqa0;License: Standard YouTube License, CC-BY