Calculate the de-Broglie wave length of an electron that accelerated from rest through PD 1 keV

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Calculate the de-Broglie wavelength
of an electron that has been accelerated
from rest through a potential difference
of 1 keV.
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Miss my sir tell that we should take log. How to take

rekachanemougame
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Miss in my book they gave 3.88 multiplied by 10 power minus 8 ...but your answer is 3.66

avinashkarthikeyan