Conceptual Physics: The High School Physics Program
9th Edition
ISBN: 9780133647495
Author: Paul G. Hewitt
Publisher: Prentice Hall
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Question
Chapter 31, Problem 16A
To determine
To explain: Whether a laser can put out more energy than is put in or not.
Expert Solution & Answer
Answer to Problem 16A
No, the laser cannot put out more energy than is put in.
Explanation of Solution
Introduction:
Laser can be explained as light amplification by stimulated emission of
Laser cannot be considered as a source of energy but it is a converter of energy. The given statement does not require more knowledge about lasers as it is based on the law of conservation of energy. So, a laser cannot put out more energy than is put in because then the law of conservation of energy will be violated. Energy must be conserved.
Conclusion:
Hence, the laser cannot put out more energy than is put in.
Chapter 31 Solutions
Conceptual Physics: The High School Physics Program
Ch. 31 - What is Huygens' principle?Ch. 31 - a. Waves spread out when they pass through an...Ch. 31 - Does diffraction aid or hinder radio reception?Ch. 31 - Does diffraction aid or hinder the viewing of...Ch. 31 - Is it possible for a wave to be canceled by...Ch. 31 - Prob. 6ACh. 31 - What was Thomas Youngs discovery?Ch. 31 - Prob. 8ACh. 31 - What is a diffraction grating?Ch. 31 - Prob. 10A
Ch. 31 - Prob. 11ACh. 31 - If a soap bubble is thick enough to cancel yellow...Ch. 31 - Why is gasoline that is spilled on a wet surface...Ch. 31 - What is an interferometer, and on what physics...Ch. 31 - Prob. 15ACh. 31 - Prob. 16ACh. 31 - Prob. 17ACh. 31 - Prob. 18ACh. 31 - Prob. 19ACh. 31 - Prob. 20ACh. 31 - Dark and light fringes on the screen are produced...Ch. 31 - Suppose the speakers at an open-air rock concert...Ch. 31 - In our everyday environment, diffraction is much...Ch. 31 - Why do radio waves diffract around buildings while...Ch. 31 - Suppose a pair of loudspeakers a meter or so apart...Ch. 31 - In the preceding question, suggest a path along...Ch. 31 - When monochromatic light illuminates a pair of...Ch. 31 - Seashells, butterfly wings, and the feathers of...Ch. 31 - When Thomas Young performed his interference...Ch. 31 - If you notice the interference patterns of a thin...Ch. 31 - Figure 31.19 shows destructive interference of...Ch. 31 - Prob. 32ACh. 31 - The interference colors seen in soap bubbles are...Ch. 31 - Prob. 34A
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