MASTERPHYS:KNIGHT'S PHYSICS ACCESS+WKB
4th Edition
ISBN: 9780135245033
Author: Knight
Publisher: PEARSON
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Chapter 35, Problem 24EAP
A scientist needs to focus a helium-neon laser beam (
a. What focal-length lens should she use?
b. What minimum diameter must the lens have?
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Chapter 35 Solutions
MASTERPHYS:KNIGHT'S PHYSICS ACCESS+WKB
Ch. 35 - Prob. 1CQCh. 35 - Prob. 2CQCh. 35 - Prob. 3CQCh. 35 - Prob. 4CQCh. 35 - Prob. 5CQCh. 35 - Prob. 6CQCh. 35 - Prob. 7CQCh. 35 - To focus parallel light rays to the smallest...Ch. 35 - Prob. 9CQCh. 35 - Two converging lenses with focal lengths of 40 cm...
Ch. 35 - Prob. 2EAPCh. 35 - Prob. 3EAPCh. 35 - Prob. 4EAPCh. 35 - Prob. 5EAPCh. 35 - A 2.0-rn-tall man is 10 m in front of a camera...Ch. 35 - What is the f-number of a lens with a 35 mm focal...Ch. 35 - What is the aperture diameter of a...Ch. 35 - A camera takes a properly exposed photo at f/5.6...Ch. 35 - A camera takes a properly exposed photo with a...Ch. 35 - Ramon has contact lenses with the prescription...Ch. 35 - Ellen wears eyeglasses with the prescription -1.0...Ch. 35 - 13. What is the f-number of a relaxed eye with the...Ch. 35 - Prob. 14EAPCh. 35 - Prob. 15EAPCh. 35 - Prob. 16EAPCh. 35 - Prob. 17EAPCh. 35 - A 20 telescope has a 12-cm-diameter objective...Ch. 35 - Prob. 19EAPCh. 35 - Prob. 20EAPCh. 35 - Prob. 21EAPCh. 35 - Prob. 22EAPCh. 35 - Prob. 23EAPCh. 35 - A scientist needs to focus a helium-neon laser...Ch. 35 - Prob. 25EAPCh. 35 - Prob. 26EAPCh. 35 - Prob. 27EAPCh. 35 - Prob. 28EAPCh. 35 - Prob. 29EAPCh. 35 - Prob. 30EAPCh. 35 - Prob. 31EAPCh. 35 - Prob. 32EAPCh. 35 - Prob. 33EAPCh. 35 - Prob. 34EAPCh. 35 - Prob. 35EAPCh. 35 - Prob. 36EAPCh. 35 - 37. You’ve been asked Lo build a telescope from a...Ch. 35 - Prob. 38EAPCh. 35 - Prob. 39EAPCh. 35 - Prob. 40EAPCh. 35 - Prob. 41EAPCh. 35 - Prob. 42EAPCh. 35 - Prob. 43EAPCh. 35 - Prob. 44EAPCh. 35 - Prob. 45EAPCh. 35 - Prob. 46EAPCh. 35 - Alpha Centauri, the nearest star to our solar...Ch. 35 - Prob. 48EAPCh. 35 - Prob. 49EAPCh. 35 - Prob. 50EAP
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- (a) What is the maximum angular magnification of an eyeglass lens having a focal length of 18.0 cm when used as a simple magnifier? (b) What is the magnification of this lens when the eye is relaxed?arrow_forwardFigure P38.43 shows a concave meniscus lens. If |r1| = 8.50 cm and |r2| = 6.50 cm, find the focal length and determine whether the lens is converging or diverging. The lens is made of glass with index of refraction n = 1.55. CHECK and THINK: How do your answers change if the object is placed on the right side of the lens? FIGURE P38.43arrow_forwardFigure P38.76 shows an object placed a distance do1 from one of two converging lenses separated by s = 1.00 m. The first lens has focal length f1 = 22.0 cm, and the second lens has focal length f2 = 45.0 cm. An image is formed by light passing through both lenses at a distance di2 = 15.0 cm to the left of the second lens. a. What is the value of do1 that will result in this image position? b. Is the final image formed by the two lenses real or virtual? c. What is the magnification of the final image? d. Is the final image upright or inverted? Figure P38.76arrow_forward
- Two converging lenses having focal length of f1 = 10.0 cm and f2 = 20.0 cm are placed d = 50.0 cm apart, as shown in Figure P23.44. The final image is to be located between the lenses, at the position x = 31.0 cm indicated. (a) How far to the left of the first lens should the object be positioned? (b) What is the overall magnification of the system? (c) Is the final image uptight or inserted? Figure P23.44arrow_forwardIn Figure P35.30, a thin converging lens of focal length 14.0 cm forms an image of the square abed, which is he = 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 P35.30arrow_forwardA camera with a 50.0 mm focal length lens is being used to photograph a person standing 3.00 m away. (a) How far from the lens must the film be? (b) If the film is 36.0 mm high, what fraction of a 1.75 m tall person will ?t on it? (c) Discuss how reasonable this seems, based on your experience in taking or posing for photographs.arrow_forward
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