JEE Main & Advanced
Physics
Atomic Physics
Question Bank
Topic Test - Atomic Physics
question_answer
What is the ratio of wavelength of radiations emitted when an electron in hydrogen atom jump from fourth orbit to second orbit and from third orbit to second orbit
A)27 : 25
B)20 : 27
C)20 : 25
D)25 : 27
Correct Answer:
B
Solution :
[b] By using \[\frac{1}{\lambda }=R\,\left[ \frac{1}{n_{1}^{2}}-\frac{1}{n_{2}^{2}} \right]\]