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Physics
Physics
Problem
In an electron gun, electrons are accelerated through a potential difference of
V
V
V
volt. Taking electronic charge and mass to be respectively
e
e
e
and
m
m
m
, the maximum velocity attained by them is: (a)
2
e
V
m
\frac{2eV}{m}
m
2
e
V
(b)
2
e
V
m
\sqrt{\frac{2eV}{m}}
m
2
e
V
(c)
2
m
/
e
V
2m/eV
2
m
/
e
V
(d)
(
V
2
/
2
e
m
)
(V^2/2em)
(
V
2
/2
e
m
)
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