An electron is accelerated from rest through a potential difference of \(\mathrm{V}\) volt. If the de Broglie wavelength of the electron is \(1.227 \times 10^{-2} n m\), the potential difference is :
A \(10 \mathrm{~V}\)
в \(10^{2} \mathrm{v}\)
c \(10^{3} \mathrm{v}\)
(D) \(10^{4} \mathrm{v}\)