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The ratio of moment of an electron and a...

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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Momentum , p = mv
and ` v = sqrt((2QV)/(m))`
` p = sqrt(2QmV )`
` rArr p oo sqrt(Qm)`
` rArr (P_(e))/(P_(alpha)) = sqrt((exxm_(e))/(2e xx m_(alpha)))`
` = sqrt((m_(e))/(2m_(alpha)))` .
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