A) \[0.5{\AA}\]
B) \[1.7{\AA}\]
C) \[2.4{\AA}\]
D) \[1.2{\AA}\]
Correct Answer: B
Solution :
[b] |
momentum \[P=\sqrt{2mE}\] and \[E=eV\] |
\[\lambda =\frac{h}{p}=\frac{h}{\sqrt{2mE}}\] |
\[=\frac{6.6\times {{10}^{-34}}}{\sqrt{2\times 9.1\times {{10}^{-31}}\times 1.6\times {{10}^{-19}}\times 50}}\] |
\[=1.7\times {{10}^{-10}}M\] |
\[=1.7{\AA}\] |
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