Q. The absorption transitions between the first and the fourth energy states of hydrogen atom are 3. The emission transitions between these states will be
A) 3
B) 4
C) 5
D) 6
Explanation
(d) By using $N_{E} = \frac{n(n - 1)}{2} \Rightarrow N_{E} = \frac{4(4 - 1)}{2} = 6$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.