JEE CHEMISTRY MCQ: STRUCTURE OF ATOM

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If the shortest wavelength of H-atom in Lyman series is x, the longest wavelength in Balmer series of

\mathrm{H}{\mathrm{e}^ + }

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Correct option: D

\frac{{9x}}{5}

Option D (

\frac{{9x}}{5}

) is correct because it is derived from using the Rydberg formula for the shortest wavelength in the Lyman series of H and the longest wavelength in the Balmer series of He+.

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