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The mean free path of a conduction elect...

The mean free path of a conduction electron in a metal is `5 xx 10^(-8) m`. The electric field, required to be applied across the conductor so as to impart `1eV` energy to the conduction electron , will be

A

`1 xx 10^(-7) V//m`

B

`2 xx 10^(7) V//m`

C

`3 xx 10^(7) V//m`

D

`4 xx 10^(7) V//m`

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The correct Answer is:
A
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