A) \[\text{4}.0\text{7}\times \text{1}{{0}^{\text{4}}}\text{ V}\]
B) \[\text{8}.\text{2}\times \text{1}{{0}^{\text{4}}}\text{ V}\]
C) \[\text{8}.\text{2}\times \text{1}{{0}^{\text{3}}}\text{ V}\]
D) \[\text{4}.0\text{7}\times \text{1}{{0}^{\text{5}}}\text{ V}\]
Correct Answer: B
Solution :
\[\lambda =\frac{h}{\sqrt{2\,mqV}}\] \[{{({{10}^{-13}})}^{2}}=\frac{{{(6.6\times {{10}^{-34}})}^{2}}}{2\times 1.67\times {{10}^{-27}}\times 1.6\times {{10}^{-19}}V}\] \[v=8.2\times {{10}^{4}}\] volt
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