A) 2.47 eV
B) 1.36 eV
C) 1.10 eV
D) 0.43 eV
Correct Answer: C
Solution :
By using \[E={{W}_{0}}+{{K}_{\max }}\] \[E=\frac{12375}{5000}=2.475\ eV\] and \[{{K}_{\max }}=e{{V}_{0}}=1.36\ eV\] So \[2.475={{W}_{0}}+1.36\Rightarrow {{W}_{0}}=1.1\ eV\].
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