1.

The ratio of momenta of an electron and an a-particle which are accelerated from rest by a potential difference of 100 volt is                                                                       [UPSEAT 1999]

A.            1    
B.            \[\sqrt{\frac{2{{m}_{e}}}{{{m}_{\alpha }}}}\]
C.            \[\sqrt{\frac{{{m}_{e}}}{{{m}_{\alpha }}}}\]               
D.            \[\sqrt{\frac{{{m}_{e}}}{2{{m}_{\alpha }}}}\]
Answer» E.


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