A) \[11.4\text{ }nm\]
B) \[24.2\text{ }nm\]
C) \[35.8\text{ }nm\]
D) \[8.6\text{ }nm\]
Correct Answer: A
Solution :
| [a] \[Z=3\] |
| \[\frac{1}{\lambda }=9R\left( 1-\frac{1}{9} \right)\] |
| \[\lambda =\frac{1}{8R}=\frac{1}{8\times 10973731.6}\] |
| \[\lambda =11.39\,nm\] |
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