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Q. An electron beam is accelerated through a potential difference of 104 volt. Find the de Broglie wavelength.
λ = 12.27 A o / √V
λ = 12.27 A o / √104
= 0.1227 A o
(i) A matter pulse is not electromagnetic in behavior. (ii) Practical observation of matter waves is possible only when the de-Broglie wavelength is of the order of the size of
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