Question

Vm-' to a
By applying electric field of the order of
metal, electrons can be pulled out of the metal.
(A) 10
(B) 103
(C) 108
(D) 102​

Answer 1

Answer:

103is the answer for it

Answer 2

By applying strong electric field of order $10^8\ Vm^{-1}$ we can pull out electron from the metal .

We need to find the order of electric field in $Vm^{-1}$ applied in the metal so that

electrons can be pulled out from its atom .

Now , to find the solution of this question, we need to study about the electron emission in metal .

After , studying the electron emission by field emission .

We came to know that the by applying strong electric field of order $10^8\ Vm^{-1}$ we can pull out electron from the metal .

Hence , this is the required solution .

Learn More :

Electron Emission

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