A) 100 \[\overset{\text{o}}{\mathop{\text{A}}}\,\]
B) 123 \[\overset{\text{o}}{\mathop{\text{A}}}\,\]
C) 1.23 \[\overset{\text{o}}{\mathop{\text{A}}}\,\]
D) 0.123 \[\overset{\text{o}}{\mathop{\text{A}}}\,\]
Correct Answer: C
Solution :
[c] \[\lambda =\frac{h}{\sqrt{2mQV}}=\frac{6.6\times {{10}^{-34}}}{\sqrt{2\times 9.1\times {{10}^{-31}}\times 1.6\times {{10}^{-19}}\times 100}}\]\[=1.23\,\overset{\text{o}}{\mathop{\text{A}}}\,\]
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