- #1
HotMintea
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Could someone explain what the 'first order' diffraction peak is?
What is the 'first order' diffraction peak?
- Thread starter HotMintea
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- Diffraction First order Peak
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The 'first order' diffraction peak refers to the initial diffraction peak observed in a diffraction pattern. Its meaning can vary based on context; it may indicate the first peak in a general sense or refer to a value derived from a 'first order' approximation. Understanding the distinction is crucial for accurate interpretation in diffraction studies. The discussion emphasizes the importance of context when defining the term. Overall, clarity in terminology is essential for effective communication in diffraction analysis.
- #2
zhermes
- 1,253
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It depends on the context. Generally it simply means the first diffraction peak, from the http://en.wikipedia.org/wiki/Diffraction_formalism" .
If its the 'diffraction peak, to first order' that can mean something different. That could be the value of the first diffraction peak, according to a 'first order' approximation.
If its the 'diffraction peak, to first order' that can mean something different. That could be the value of the first diffraction peak, according to a 'first order' approximation.
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- #3
HotMintea
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zhermes said:
Thanks for your help!
I also liked the article you referred to.
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The answer is (B) but I don't really understand why.
Based on formula of Young Modulus:
$$x=\frac{FL}{AE}$$
The second wire made of the same material so it means they have same Young Modulus. Larger extension means larger value of ##x## so to get larger value of ##x## we can increase ##F## and ##L## and decrease ##A##
I am not sure whether there is change in ##F## for first and second wire so I will just assume ##F## does not change. It leaves (B) and (C) as possible options so why is (C)...