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29 views

de Broglie relations: calculate wavelength using two different approaches [duplicate]

When studying the de Broglie relations, I have stumbled across the following problem: Consider an electron with known velocity $v$ and assume: $v \ll c$. Calculate the corresponding wavelength of ...
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1answer
104 views

Uncertainty and wave-trains

My textbook and the following extract from feynman's lectures present the same idea regarding wavetrains and uncertainty in their wavelengths. Why is it that a wavetrain confined to some space has an ...
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75 views

Crystalography - hardest homework problem i have seen so far

The problem statement: We are observing an electron diffraction on a "Ni" crystal. We point the narrow beam of electrons on a crystal which can be rotated so that we are changing the angle ...
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2answers
229 views

Which equation tells you the minimum energy of a wave needed to see a small particle?

I have a problem that asks for the minimum energy of a wave that we will use to see a particle of size $.1\text{ nm}$. I understand that I can not see a $.1\text{ nm}$ particle with any wave length ...