Wave Attenuation: Struggling in Course? Resources to Help

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The discussion highlights frustrations with a lecturer's inadequate explanation of wave attenuation in a waves and diffraction course. Participants express difficulty in finding suitable textbooks or resources that clarify the concept of attenuation and its applications. The term "attenuation" is linked to the loss of amplitude due to damping, which was briefly mentioned in the lecture. A suggestion is made to refer to a Wikipedia page for a basic understanding of attenuation. Overall, there is a clear need for better educational resources on this topic.
Darren93
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For my waves and diffraction course we have had a completely incompetent lecturer. We were looking at standing waves and then all of a sudden he spent a lecture looking at attenuation, not mentioning where it would apply or explaining it particularly well. I have tried to find a textbook to explain what is going on but have been fairly unsuccessful. Can anyone point me in the right direction for materials to explain what is going on. I have hopefully attached the single slide he used in the lecture.
 

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