College Physics: A Strategic Approach (3rd Edition)
3rd Edition
ISBN: 9780321879721
Author: Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher: PEARSON
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Chapter 18, Problem 25P
A light bulb is 60 cm from a concave mirror with a focal length of 20 cm. Use ray tracing to determine the location of its image. Is the image upright or inverted? Is it real or virtual?
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Chapter 18 Solutions
College Physics: A Strategic Approach (3rd Edition)
Ch. 18 - Prob. 1CQCh. 18 - Prob. 2CQCh. 18 - Can you see the rays from the sun on a clear day?...Ch. 18 - If you take a walk on a summer night along a dark,...Ch. 18 - You are looking at the image of a pencil in a...Ch. 18 - Prob. 6CQCh. 18 - In Manets A Bar at the Folies-Bergere (see Figure...Ch. 18 - Explain why ambulances have the word AMBULANCE...Ch. 18 - a. Consider one point on an object near a lens....Ch. 18 - When you look at your reflection in the bowl of a...
Ch. 18 - A concave mirror brings the suns rays to a focus...Ch. 18 - Prob. 12CQCh. 18 - You are looking straight into the front of an...Ch. 18 - A lens can be used to start a fire by focusing an...Ch. 18 - A piece of transparent plastic is molded into the...Ch. 18 - From where you stand one night, you see the moon...Ch. 18 - Questions 17 through 19 are concerned with the...Ch. 18 - Prob. 18MCQCh. 18 - Is there an angle of incidence between 0 and 90...Ch. 18 - A 2.0-m-tall man is 5.0 m from the converging lens...Ch. 18 - You are 2.4 m from a plane mirror, and you would...Ch. 18 - As shown in Figure Q18.22, an object is placed in...Ch. 18 - A real image of an object can be formed by A. A...Ch. 18 - An object is 40 cm from a converging lens with a...Ch. 18 - The lens in Figure Q18 .25 is used to produce a...Ch. 18 - A converging lens of focal length 20 cm is used to...Ch. 18 - You look at yourself in a convex mirror. Your...Ch. 18 - An object is 50 cm from a diverging lens with a...Ch. 18 - A 5.0-ft-tall girl stands on level ground. The sun...Ch. 18 - A 10-cm-diameter disk emits light uniformly from...Ch. 18 - A point source of light illuminates an aperture...Ch. 18 - Prob. 4PCh. 18 - Prob. 5PCh. 18 - Prob. 6PCh. 18 - It is 165 cm from your eyes to your toes. Youre...Ch. 18 - Prob. 8PCh. 18 - An underwater diver sees the sun 50 above...Ch. 18 - A laser beam in air is incident on a liquid at an...Ch. 18 - A 1.0-cm-thick layer of water stands on a...Ch. 18 - A 4.0-m-wide swimming pool is filled to the top....Ch. 18 - A diamond is underwater. A light ray enters one...Ch. 18 - Prob. 14PCh. 18 - A light ray travels inside a horizontal plate of...Ch. 18 - Prob. 16PCh. 18 - A biologist keeps a specimen of his favorite...Ch. 18 - A fish in a flat-sided aquarium sees a can of fish...Ch. 18 - A swim mask has a pocket of air between your eyes...Ch. 18 - An object is 30 cm in front of a converging lens...Ch. 18 - An object is 6.0 cm in front of a converging lens...Ch. 18 - An object is 20 cm in front of a diverging lens...Ch. 18 - An object is 15 cm in front of a diverging lens...Ch. 18 - A concave cosmetic mirror has a focal length of 40...Ch. 18 - A light bulb is 60 cm from a concave mirror with a...Ch. 18 - The illumination lights in an operating room use a...Ch. 18 - A dentist uses a curved mirror to view the back...Ch. 18 - A convex mirror, like the passenger-side rearview...Ch. 18 - An object is 12 cm in front of a convex mirror....Ch. 18 - A 2.0-cm-tall object is 40 cm in front of a...Ch. 18 - A 1.0-cm-tall object is 10 cm in front of a...Ch. 18 - A 2.0-cm-tall object is 15 cm in front of a...Ch. 18 - A 1.0-cm-tall object is 75 cm in front of a...Ch. 18 - A 2.0-cm-tall object is 15 cm in front of a...Ch. 18 - A 1.0-cm-tall object is 60 cm in front of a...Ch. 18 - A 3.0-cm-tall object is 15 cm in front of a convex...Ch. 18 - A 3.0-cm-tall object is 45 cm in front of a convex...Ch. 18 - A 3.0-cm-tall object is 15 cm in front of a...Ch. 18 - A 3.0-cm-tall object is 45 cm in front of a...Ch. 18 - At what distance from a concave mirror with a 35...Ch. 18 - Starting 3.5 m from a department store mirror,...Ch. 18 - You slowly back away from a plane mirror at a...Ch. 18 - At what angle should the laser beam in Figure...Ch. 18 - Prob. 44GPCh. 18 - Prob. 45GPCh. 18 - The place you get your hair cut has two nearly...Ch. 18 - Prob. 47GPCh. 18 - A ray of light traveling through air encounters a...Ch. 18 - Prob. 49GPCh. 18 - Prob. 50GPCh. 18 - Prob. 51GPCh. 18 - Its nighttime, and youve dropped your goggles into...Ch. 18 - One of the contests at the school carnival is to...Ch. 18 - Figure P18.54 shows a meter stick lying on the...Ch. 18 - Prob. 55GPCh. 18 - Prob. 56GPCh. 18 - Prob. 57GPCh. 18 - Prob. 58GPCh. 18 - A 1.0-cm-thick layer of water stands on a...Ch. 18 - The glass core of an optical fiber has index of...Ch. 18 - A 150-cm-tall diver is standing completely...Ch. 18 - To a fish, the 4 00-mm-thick aquarium walls appear...Ch. 18 - A microscope is focused on an amoeba. When a...Ch. 18 - A ray diagram can be used to find the location of...Ch. 18 - A 2.0-cm-tall object is located 8.0 cm in front of...Ch. 18 - You need to use a 24-cm-focal-length lens to...Ch. 18 - A near-sighted person might correct his vision by...Ch. 18 - A 1.0-cm-tall object is 20 cm in front of a...Ch. 18 - A 2.0-cm-tall object is 20 cm in front of a...Ch. 18 - A 1.0-cm-tall object is 7.5 cm in front of a...Ch. 18 - A 1.5-cm-tall object is 90 cm in front of a...Ch. 18 - The moon is 3.5 106 m in diameter and 3.8 108 m...Ch. 18 - A 2.0-cm-tall candle flame is 2.0 m from a wall....Ch. 18 - A 2.0-cm-diameter spider is 2.0 m from a wall....Ch. 18 - Figure P18.75 shows a meter stick held lengthwise...Ch. 18 - A slide projector needs to create a 98-cm-high...Ch. 18 - The writing on the passenger-side mirror of your...Ch. 18 - The pocket of hot air appears to be a pool of...Ch. 18 - Which of these changes would allow you to get...Ch. 18 - If you could clearly see the image of an object...
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- 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_forwardA 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_forwardA floating strawberry illusion is achieved with two parabolic mirrors, each having a focal length 7.50 cm, facing each other as shown in Figure P33.58. If a strawberry is placed on the lower mirror, an image of the strawberry is formed at the small opening at the center of the top mirror, 7.50 cm above the lowest point of the bottom mirror. The position of the eye in Figure P35.58a corresponds to the view of the apparatus in Figure P35.58b. Consider the light path marked A. Notice that this light path is blocked by the upper mirror so that the strawberry itself is not directly observable. The light path marked B corresponds to the eye viewing the image of the strawberry that is formed at the opening at the top of the apparatus. (a) Show that the final image is formed at that location and describe its characteristics. (b) A very startling effect is to shine a flashlight beam on this image. Even al a glancing angle, the incoming light beam is seemingly reflected from the image! Explain. Figure P35.58arrow_forward
- (i) When an image of an object is formed by a plane mirror, which of the following statements is always true? More than one statement may be correct. (a) The image is virtual. (b) The image is real. (c) The image is upright. (d) The image is inverted. (e) None of those statements is always true. (ii) When the image of an object is formed by a concave mirror, which of the preceding statements are always true? (iii) When the image of an object is formed by a convex mirror, which of the preceding statements are always true?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_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_forward
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