1.

Taking Rydberg's constant \[R=1.097\times {{10}^{7}}m\], first and second wavelength of Balmer series in hydrogen spectrum is

A.  \[2000\text{ }\overset{\text{o}}{\mathop{\text{A }\!\!~\!\!\text{ }}}\,,\text{ }3000\text{ }\overset{\text{o}}{\mathop{\text{A }\!\!~\!\!\text{ }}}\,~\]
B.  \[\text{1575 }\overset{\text{o}}{\mathop{\text{A }\!\!~\!\!\text{ }}}\,\text{, }\!\!~\!\!\text{ 2960 }\overset{\text{o}}{\mathop{\text{A }\!\!~\!\!\text{ }}}\,\]
C.  \[\text{6529 }\overset{\text{o}}{\mathop{\text{A}}}\,\text{, }\,\text{4280 }\overset{\text{o}}{\mathop{\text{A }\!\!~\!\!\text{ }}}\,\]
D.  \[6552\text{ }\overset{\text{o}}{\mathop{\text{A }\!\!~\!\!\text{ }}}\,,\text{ }4863\text{ }\overset{\text{o}}{\mathop{\text{A }\!\!~\!\!\text{ }}}\,~~\]
Answer» E.


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