Question

Kinetic energy of an electron in hydrogen atom in Bohrs orbit of radius r:

• A. $\frac{KE}{2r}$
• B. $\frac{K{E}^2}{2r}$
• C. $\frac{KE}{r}$
• D. $\frac{2KE}{r}$

Answer 1

Answer: (B)

Kinetic energy of an electron in orbit of radius $r=\frac{K{E}^2}{2r}$ where $K=\frac{Z}{4\pi {\epsilon }_0}$