A) \[1.21\,\overset{o}{\mathop{A}}\,\]
B) \[1.42\,\overset{o}{\mathop{A}}\,\]
C) \[6.05\,\overset{o}{\mathop{A}}\,\]
D) \[3.63\,\overset{o}{\mathop{A}}\,\]
Correct Answer: A
Solution :
| Key Idea: The given standing wave has 2 segments. |
| The given standing wave has shown in the figure. |
 |
| As length of one loop or segment is \[\frac{\lambda }{2},\] so length of 2 segments is \[2\left( \frac{\lambda }{2} \right)\] |
| \[\therefore \] \[2\frac{\lambda }{2}=1.21\,{\AA}\] |
| \[\Rightarrow \] \[\lambda =1.21\,{\AA}\] |
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