The wavelength of radiation emitted out in the transition $n=4$ to $n=1$ in $\mathrm{Li}^{2+}$ ion is

JEE CHEMISTRY MCQ: STRUCTURE OF ATOM

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Application +4 | -1

The wavelength of radiation emitted out in the transition

n=4

n=1

\mathrm{Li}^{2+}

ion is

View answer and explanation

Correct option: B

\frac{16}{135 R}

Option B (

\frac{{16}}{{135 R}}

) is correct because it is the reciprocal of the wavenumber calculated using the Rydberg formula for the given transition in

\mathrm{Li}^{2+}

ion.

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n^{\text {th }}

\mathrm{A}

\times 10^{12}

\frac{1}{{ }^{\prime} \mathrm{B}^{\prime}}

\ell = 1,\,\,m = 0

1.25 \times {10^{ - 13}} \times {A^{1/3}}\mathrm{cm}.