Q. The angular momentum (L) of an electron moving in a stable orbit around nucleus is
A) Half integral multiple of $\frac{h}{2\pi}$
B) integral multiple of $h$
C) integral multiple of $\frac{h}{2\pi}$
D) Half integral multiple of $h$
Explanation
(c) For an electron to remain orbiting around the nucleous, the angular momentum $(L)$ should be an integral multiple of $h/2\pi.$
$ie,\ \ $ $mvr$= $\frac{nh}{2\pi}$
where $n$ = principle quantum number of electron,
and $h$= Planck’s constant
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.