Atomic Structure Question 249
What is the maximum wavelength line in the Lyman series of He⁺ ion?
Options:
A) $ 3R $
B) $ \frac{1}{3R} $
C) $ \frac{4}{4R} $
D) None of these
Show Answer
Answer:
Correct Answer: B
Solution:
- $ \frac{1}{\lambda }=RZ^{2}[ \frac{1}{n_1^{2}}-\frac{1}{n_2^{2}} ]=R\times 2^{2}[ \frac{1}{1^{2}}-\frac{1}{2^{2}} ] $
$ \Rightarrow 3R;\lambda =\frac{1}{3R} $
BETA
