A) zero
B) 1 eV
C) 2eV
D) 10 eV
Correct Answer: C
Solution :
According to Einstein's photoelectric equation \[hv=\phi +\frac{1}{2}m{{v}^{2}}\] or \[6=4+\frac{1}{2}m{{v}^{2}}\] \[\Rightarrow \] \[\frac{1}{2}m{{v}^{2}}=2eV\]You need to login to perform this action.
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