Question

According to Bohr's postulates, which of the following is a possible value of angular momentum of an accepted orbit of an electron?

• A. $\frac{2h}{\pi }$
• B. $\frac{5h}{2\pi }$
• C. $\frac{h}{\pi }$
• D. All of the above

Answer 1

The correct option is D All of the above

According to Bohr's postulates, angular momentum of an electron is quantized
$mvr=\frac{nh}{2\pi }$
Where n = 1, 2, 3....
On comparing
$\frac{2h}{\pi }=\frac{nh}{2\pi }$ For n = 4
$\frac{5h}{2\pi }=\frac{nh}{2\pi }$ For n = 5
$\frac{h}{\pi }=\frac{nh}{2\pi }$ For n = 2
Hence all are correct