# The de Broglie wavelength of an electron in the

Question:

The de Broglie wavelength of an electron in the $4^{\text {th }}$ Bohr orbit is :

1. $8 \pi \mathrm{a}_{0}$

2. $2 \pi \mathrm{a}_{0}$

3. $4 \pi \mathrm{a}_{0}$

4. $6 \pi a_{0}$

Correct Option: 1

Solution: