The mean free path of electrons in a met...

The mean free path of electrons in a metal is `4 xx 10^(-8)m` The electric field which can give on an average `2eV` energy to an electron in the metal will be in the units `V//m`

`5 xx 10^(-11)`

`8 xx 10^(-11)`

`5 xx 10^(7)`

`8 xx 10^(7)`

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