A metal with a work function of 3.0ev is irradiated with ultraviolet light of energy 4.0 ev. The kinetic energy of the ejected electron is
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Correct Answer: Option A
Explanation:
K.E = hf - Wo
= 4 - 3 = 1eV
K.E = hf - Wo
= 4 - 3 = 1eV