1.

The first member of Balmer series of hydrogen has a wavelength of \[6563\text{ }\overset{{}^\circ }{\mathop{A}}\,\] the wavelength of its second member will be

A.  \[4861\text{ }\overset{{}^\circ }{\mathop{\text{A}}}\,\]
B.  \[6563\text{ }\overset{{}^\circ }{\mathop{\text{A}}}\,\]
C.  \[3561\overset{{}^\circ }{\mathop{\text{A}}}\,\]
D.  \[1215\overset{{}^\circ }{\mathop{\text{A}}}\,\]
Answer» B.  \[6563\text{ }\overset{{}^\circ }{\mathop{\text{A}}}\,\]


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