The momentum of an electron revolving in nth orbit is given... | Physics | SolveeIt | Solveeit

Today, August 24

Question

The momentum of an electron revolving in nth orbit is given by: (Symbols have their usual meanings)

A

$\frac{nh}{2πr}$

B

$\frac{nh}{2r}$

C

$\frac{nh}{2\pi}$

D

$\frac{2πr}{nh}$

Answer

$\frac{nh}{2πr}$

Explanation

Solution

Angular momentum is an integral multiple of $\frac{h}{2\pi}$
mvr= $\frac{nh}{2\pi}$
So momentum mv= $\frac{nh}{2\pi r}$