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Solutions for Chapter 34: Fundamentals of Physics: 9th Edition

Fundamentals of Physics: | 9th Edition | ISBN: 9780470556535 | Authors: David Halliday; Robert Resnick; Jearl Walker

Full solutions for Fundamentals of Physics: | 9th Edition

ISBN: 9780470556535

Fundamentals of Physics: | 9th Edition | ISBN: 9780470556535 | Authors: David Halliday; Robert Resnick; Jearl Walker

Solutions for Chapter 34

Solutions for Chapter 34
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Textbook: Fundamentals of Physics:
Edition: 9
Author: David Halliday; Robert Resnick; Jearl Walker
ISBN: 9780470556535

Summary of Chapter 34:

One goal of physics is to discover the basic laws governing light, such as law of refraction. A broader goal is to put those laws to use, and perhaps the most important use is the production of images. The first photo- graphic images, made in 1824, were only novelties, but our world now thrives on images. Huge industries are based on the production of images on televi- sion, computer, and theater screens. Images from satellites guide military strategists during times of conflict and environmental strategists during times of blight. Camera surveillance can make a subway system more secure, but it can also invade the privacy of unsuspecting citizens. Physiologists and medical engineers are still puzzled by how images are produced by the hu- man eye and the visual cortex of the brain, but they have managed to create mental images in some sightless people by electrical stimulation of the brain's visual cortex. Our first step in this chapter is to define and classify images. Then we exam- ine several basic ways in which they can be produced. For you to see, say, a penguin, your eye must intercept some of the light rays spreading from the penguin and then redirect them onto the retina at the rear of the eye. Your visual system, starting with the retina and ending with the visual cortex at the rear of your brain, automatically and subconsciously processes the information provided by the light. That system identifies edges, orientations, textures, shapes, and colors and then rapidly brings to your consciousness an image (a reproduction derived from light) of the penguin; you perceive and rec- ognize the penguin as being in the direction from which the light rays came and at the proper distance. Your visual system goes through this processing and recognition even if the light rays do not come directly from the penguin, but instead reflect toward you from a mirror or refract through the lenses in a pair of binoculars. However, you now see the penguin in the direction from which the light rays came after they reflected or refracted, and the distance you perceive may be quite different from the penguin's true distance. For example, if the light rays have been reflected toward you from a standard flat mirror, the penguin appears to be behind the mirror because the rays you intercept come from that direction. Of course, the penguin is not back there. This type of image, which is called a virtual image, truly exists only within the brain but nevertheless is said to exist at the perceived location.

This textbook survival guide was created for the textbook: Fundamentals of Physics:, edition: 9. Chapter 34 includes 111 full step-by-step solutions. Since 111 problems in chapter 34 have been answered, more than 95468 students have viewed full step-by-step solutions from this chapter. This expansive textbook survival guide covers the following chapters and their solutions. Fundamentals of Physics: was written by and is associated to the ISBN: 9780470556535.

Key Physics Terms and definitions covered in this textbook
  • //

    parallel

  • any symbol

    average (indicated by a bar over a symbol—e.g., v¯ is average velocity)

  • °C

    Celsius degree

  • °F

    Fahrenheit degree

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