The ratio of momenta of an electron and an \( \alpha \)-particle which are accelerated from rest....

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The ratio of momenta of an electron and an
\( \mathrm{P} \)
\( \alpha \)-particle which are accelerated from rest by a potential difference of 100 volt is
W
(A) 1
(B) \( \sqrt{\frac{2 m_{e}}{m_{\alpha}}} \)
(C) \( \sqrt{\frac{m_{e}}{m_{\alpha}}} \)
(D) \( \sqrt{\frac{m_{e}}{2 m_{\alpha}}} \)


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