A) 3.32 ´ 10?27 Å
B) 1.5 ´ 107 Å
C) 0.55 ´ 10?22 Å
D) None of these
Correct Answer: A
Solution :
\[\lambda =\frac{h}{mv}=\frac{6.6\times {{10}^{-34}}}{1\times 2000}=3.3\times {{10}^{-37}}m\] \[=3.3\times {{10}^{-27}}{\AA}\]
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