A) \[5.47\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\]
B) \[10.9\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\]
C) \[2.7\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\]
D) None of the above
Correct Answer: A
Solution :
\[\lambda =\frac{h}{\sqrt{2m\,\,KE}}\] \[=\frac{6.6\times {{10}^{-34}}}{\sqrt{2\times 9.1\times {{10}^{-31}}\times 5\times 1.6\times {{10}^{-19}}}}\] \[=5.469\times {{10}^{-10}}m=5.47\overset{\text{o}}{\mathop{\text{A}}}\,\]
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