The de Broglie wavelength λ associated with an electron of mass m and accelerated by an electric potential V is:

1
\(λ=\frac{h}{\sqrt{2meV}}\)
2
\(λ=\frac{h}{\sqrt{meV}}\)
3
\(λ=\frac{m}{\sqrt{2heV}}\)
4
\(λ=\frac{h}{{2meV}}\)

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