What is the de-Broglie wavelength associated with \( \mathrm{P} \) ...

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What is the de-Broglie wavelength associated with
\( \mathrm{P} \)
an electron, accelerated through a potential
W
difference of 440 volts?
(1) \( 0.058 \mathrm{~nm} \)
(2) \( 0.086 \mathrm{~nm} \)
(3) \( 1 \mathrm{~nm} \)
(4) \( 0 \mathrm{~nm} \)
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