Question

According to Bohr's model, the angular momentum of an electron in 4th orbit is:

• A. $h/3$
• B. $h/2$
• C. $2h/\pi$
• D. none of these

Answer 1

The correct option is C $2h/\pi$

The angular momentum of the electron in the nth orbit=$\frac{nh}{2\pi }$

where orbit number$=n=4$ (Given)

Angular momentum of the electron in the fourth orbit=$\frac{4h}{2\pi }=\frac{2h}{\pi }$