JEE Main & Advanced
Physics
Atomic Physics
Question Bank
Self Evaluation Test - Atoms
question_answer
In Bohr theory of hydrogen atom, let r, v and E be the radius of orbit, speed of electron and the total energy of the electron respectively. Which of the following quantities is proportional to the quantum number n?
A) vr
B) rE
C) r/E
D) r/v
Correct Answer:
A
Solution :
[a] Note that v is inversely proportional to n whereas r is directly to \[{{n}^{2}}\].