(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A proton is accelerated from rest through a potential of 1kV. Find its de Broglie wavelength.

2. Relevant equations

[tex]\lambda=h/p[/tex]

3. The attempt at a solution

I tried to get p (momentum) by energy comparison:

e*1000=0.5*m*v^2

v=437 621.130 016 524 m/s

which doesn't makes sense... what am I doing wrong?

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# Homework Help: De-Broglie waves

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