Question

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. $2\pi/h$

Answer 1

Answer: (C)

$h/2\pi$

Answer 2

$mvr = \frac{nh}{2\pi}$, for n =1 it is $\frac{h}{2\pi}$.