The wavelength of Lyman series is - Vidyadip

MCQ

The wavelength of Lyman series is

✓
$\frac{4}{{3 \times 10967}}cm$
B
$\frac{3}{{4 \times 10967}}cm$
C
$\frac{{4 \times 10967}}{3}cm$
D
$\frac{3}{4} \times 10967\;cm$

✓

Answer

Correct option: A.

$\frac{4}{{3 \times 10967}}cm$

a
(a) $\frac{1}{\lambda } = {R_H}\left[ {\frac{1}{{n_1^2}} - \frac{1}{{n_2^2}}} \right].$ For Lyman series $n_1 =1$ and $n_2 =2$,

we get $\lambda = \frac{4}{{3{R_H}}} = \frac{4}{{3 \times 10967}}cm$

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