A) \[{{n}_{4}}\to {{n}_{1}}\]
B) \[{{n}_{2}}\to {{n}_{1}}\]
C) \[{{n}_{4}}\to {{n}_{2}}\]
D) \[{{n}_{3}}\to {{n}_{1}}\]
Correct Answer: A
Solution :
\[E=\frac{hc}{\lambda }\]or \[E\propto \frac{1}{\lambda }\] Thus a decrease in wave length represents an increase in energy For\[{{n}_{4}}\xrightarrow{{}}{{n}_{1}},\]transition. These are greater the energy difference and lesser will be wavelength. Thus, for\[{{n}_{4}}\xrightarrow{{}}{{n}_{1}}\]transition has minimum wavelength
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