A) \[3.09\times {{10}^{-8}}m\]
B) \[5.09\times {{10}^{8}}m\]
C) \[4.09\times {{10}^{-8}}m\]
D) \[1.09\times {{10}^{8}}m\]
Correct Answer: A
Solution :
\[{{\lambda }_{\min }}=\frac{12375}{40}{\AA}=3.09\times {{10}^{-8}}m\]
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