A) \[3\times {{10}^{-16}}J\]
B) \[3\times {{10}^{-19}}J\]
C) \[3\times {{10}^{-20}}J\]
D) \[3\times {{10}^{-22}}J\]
Correct Answer: B
Solution :
The work function \[W=\frac{hc}{\lambda }\] \[=\frac{6.6\times {{10}^{-34}}\times 3\times {{10}^{8}}}{600\times {{10}^{-9}}}\] \[W=3\times {{10}^{-19}}J\] (approximately)You need to login to perform this action.
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