Atoms And Nuclei Question 47
Question: In a hydrogen atom, which of the following electronic transitions would involve the maximum energy change [MP PET 1997]
Options:
A) From n = 2 to n = 1
B) From n = 3 to n = 1
C) From n = 4 to n = 2
D) From n = 3 to n = 2
Show Answer
Answer:
Correct Answer: B
Solution:
P.E. $ =-\frac{ke^{2}}{r}=-\frac{e^{2}}{4\pi {\varepsilon_{0}}r} $ ; K.E. $ =-\frac{1}{2}(P\text{.E}\text{.})=\frac{e^{2}}{8\pi {\varepsilon_{0}}r} $
