![]() Textbook content produced by OpenStax is licensed under a Creative Commons Attribution License. We recommend using aĪuthors: Paul Peter Urone, Roger Hinrichs Use the information below to generate a citation. Then you must include on every digital page view the following attribution: If you are redistributing all or part of this book in a digital format, Then you must include on every physical page the following attribution: If you are redistributing all or part of this book in a print format, Want to cite, share, or modify this book? This book uses the This book may not be used in the training of large language models or otherwise be ingested into large language models or generative AI offerings without OpenStax's permission. We will pursue interference patterns elsewhere in this text. Figure 16.41 shows what this interference might look like. 00 W/m 2, other places where the intensity is zero, and others in between. 00 W/m 2 each, there will be places in the room where the intensity is 4. For example, if we have two stereo speakers putting out 1. We actually get a pattern of both constructive interference and destructive interference whenever two waves are added. The addition of waves is not as simple as our first look in Superposition and Interference suggested. There are other areas where the intensity is zero. 00 W/m 2 is much less than the area covered by the two waves before they interfered. This violation, of course, cannot happen. 00 W/m 2, which may appear to violate conservation of energy. 00 W/m 2, yet their sum has an intensity of 4. The two individual waves each have intensities of 1. ![]() The intensity goes up by a factor of 4 when the amplitude doubles. In fact, a wave’s energy is directly proportional to its amplitude squared because How the value change as the concentration is increased. Absorbance is defined as the amount of light absorbed by the molecules of the object. Because work W W is related to force multiplied by distance ( Fx Fx ) and energy is put into the wave by the work done to create it, the energy in a wave is related to amplitude. Transmittance is a ratio of the incident intensity of light (I 0) to the amount of intensity passes through the object (I). The larger the displacement x x, the larger the force F = kx F = kx needed to create it. More quantitatively, a wave is a displacement that is resisted by a restoring force. Large ocean breakers churn up the shore more than small ones. Loud sounds have higher pressure amplitudes and come from larger-amplitude source vibrations than soft sounds. Large-amplitude earthquakes produce large ground displacements. The amount of energy in a wave is related to its amplitude. Ultrasound is used for deep-heat treatment of muscle strains. Loud sounds pulverize nerve cells in the inner ear, causing permanent hearing loss. Earthquakes can shake whole cities to the ground, performing the work of thousands of wrecking balls. The energy of some waves can be directly observed. (credit: Petty Officer 2nd Class Candice Villarreal, U.S. ![]() The Richter scale rating of earthquakes is related to both their amplitude and the energy they carry. Figure 16.40 The destructive effect of an earthquake is palpable evidence of the energy carried in these waves. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |