The innermost orbit of the hydrogen atom has a diameter of 1.06 A⁰. The diameter of the tenth orbit is ____

Radius of the Bohr orbit is directly proportional to the square of the orbit no

$\frac{{\mathrm{r}}_1}{{\mathrm{r}}_{10}}=\frac{1^2}{{10}^2}=\frac{1}{100}$

${\mathrm{r}}_{10}=100 {\mathrm{r}}_1=106 \stackrel{0}{\mathrm{A}}$