Question

Ratio of the wavenumber of the first line of Lyman
series of hydrogen atom to the first line of Balmer
series of He+ ion will be

A. 5:2
B. 9:5
C. 27:20
D. 7:5



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Answer 1

$\fbox\orange{A}\fbox\pink{N}\fbox\blue{S}\fbox\red{W}\fbox \purple{E}\fbox\red{R}$

= 27/5 i.e c)

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