Question: Electrons are accelerated from rest through an (8000 mathrm{~V}) potential difference. By what factor would their de Broglie wavelength increase if they were instead accelerated

Electrons are accelerated from rest through an \(8000 \mathrm{~V}\) potential difference. By what factor would their de Broglie wavelength increase if they were instead accelerated through a \(2000 \mathrm{~V}\) potential?

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