Q. In the lowest energy level of hydrogen atom, the electron has the angular momentum
A) $\pi/h$
B) $h/\pi$
C) $h/2\pi$
D) $2\pi/h$
Explanation
(c) $mvr = \frac{nh}{2\pi}$, for $n = 1$ it is $\frac{h}{2\pi}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.