1.

The observed wavelegnth in the line spectrum of hydrogen atom were first expressed in terms of a series by Johann Jakob Balmer, a Swiss teacher. Balmer's emipirical formula is (1)/(lamda)=R_(H)[(1)/(2^(2))-(1)/(n^(2))]n=3,4,5 . . . R_(H)=109678cm^(-1) is the Rydberg constant. Niels Bohr derived this expression theoretically in 1913. The formula is generalised to any one electron atom/ion. Which of the following is not correctly matched?

Answer»

`H_(ALPHA)-`6569Ã…(Red)
`H_(beta)-`4861Ã…
`H_(gamma)-`4340Ã… (ORANGE)
`H_(delta)-`4101Ã…(Violet)

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