A) \[736.7\,\overset{\text{o}}{\mathop{\text{A}}}\,\]
B) \[760.7\,\overset{\text{o}}{\mathop{\text{A}}}\,\]
C) \[301\,\overset{\text{o}}{\mathop{\text{A}}}\,\]
D) \[344.4\,\overset{\text{o}}{\mathop{\text{A}}}\,\]
Correct Answer: D
Solution :
Work function \[W=\frac{hc}{\lambda }\] \[\lambda =\frac{hc}{W}\] \[=\frac{6.6\times {{10}^{10-34}}\times 3\times {{10}^{8}}}{5.26\times {{10}^{18}}}=344.4\overset{\text{ }\!\!{}^\circ\!\!\text{ }}{\mathop{\text{A}}}\,\]You need to login to perform this action.
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