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1. As per Einstein's equation, the velocity of emitted electron in photoelectric emission is given by the equation
(A): mv2 ≤ hf + Uw
(B): mv2 ≤ hf - Uw
(C): mv2 = hf + Uw
(D): mv2 = hf - Uw
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Comments
By: guest on 02 Jun 2017 12.51 am
Some electrons have less energy than Fermi level E and, therefore, more energy than Uw to escape. Therefore, this equation has inequality sign.
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