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Physics
Physics
Problem
A particle of charge
Q
Q
Q
and mass
m
m
m
travels through a potential difference
V
V
V
from rest. The final momentum of the particle is: (a)
m
V
Q
\frac{mV}{Q}
Q
mV
(b)
2
Q
m
V
2Q\sqrt{mV}
2
Q
mV
(c)
2
m
Q
V
\sqrt{2mQV}
2
m
Q
V
(d)
2
Q
V
m
\sqrt{\frac{2QV}{m}}
m
2
Q
V
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