Atoms And Nuclei Question 137
Question: In the spectrum of hydrogen atom, the ratio of the longest wavelength in Lyman series to the longest wavelength in the Balmer series is [UPSEAT 2004]
Options:
A) 5/27
B) 1/93
C) 4/9
D) 3/2
Show Answer
Answer:
Correct Answer: A
Solution:
In Lyman series $ {\lambda_{\max }}=\frac{4}{3R} $ In Balmer series $ {\lambda_{\max }}=\frac{36}{5R}. $ So required ratio $ =\frac{5}{27} $
