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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 2 eV energy to an electron in the metal will be in units of V/m :

A

`5 xx 10^(-11)`

B

`8 xx 10^(-11)`

C

`5 xx 10^(7)`

D

`8 xx 10^(7)`

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The correct Answer is:
C
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AAKASH INSTITUTE ENGLISH-ELECTROSTATIC POTENTIAL AND CAPACITANCE -ASSIGNMENT SECTION - C
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