Q. In Bohr model of hydrogen atom, the ratio of periods of revolution of an electron in $n = 2$ and $n = 1$ orbits is
A) 2 : 1
B) 4 : 1
C) 8 : 1
D) 16 : 1
Explanation
(c) $T \propto n^{3} \Rightarrow \frac{T_{2}}{T_{1}} = \frac{2^{3}}{1^{3}} = \frac{8}{1}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.