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The ratio of moment of an electron and an `alpha`-particle which are accelerated from rest by a potential difference of `100V` is |
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Answer» Momentum p=mv and `v=sqrt((2QV)/m)` `p=sqrt(2QmV)` `rArr p prop sqrt(Qm)` `rArr p_e/p_alpha=sqrt((exxm_e)/(2exxm_alpha))=sqrt(m_e/(2m_alpha)) ` |
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