Question

The angular momentum of an electron in a given stationary state can be expressed as $m_{e}vr = n\frac{h}{2\pi}.$ Based on this expression an electron can move only in those orbits for which its angular momentum is.

• A. Equal to n
• B. Integral multiple of $\frac{h}{2\pi}$.
• C. Multiple of n
• D. Equal to $\frac{h}{2\pi}$only.

Answer 1

Answer: (B)

Integral multiple of $\frac{h}{2\pi}$.

Answer 2

: An electron can move only in those orbit for which angular momentum is a multiple of $h/2\pi.n = 1,2,3,....$