Modern Physics Ques 20
- If the series limit frequency of the Lyman series is $V _L$, then the series limit frequency of the Pfund series is
(2018 Main)
(a) $v _L / 25$
(b) $16 v _L$
(c) $\frac{V _L}{16}$
(d) $\frac{v _L}{20}$
Show Answer
Solution:
Formula:
Wavelength Corresponding To Spectral Lines:
20.2=13.6 \times 2^{2} \frac{1}{1^{2}}-\frac{1}{n^{2}} \Rightarrow n=2 $$
Thus, no transition takes place.
Similarly, when in the $n=2$ state,
$$
BETA
