Answer & explanation
Correct answer: option 3
Bohr Radius $ r\propto n^2$
$ \text{ Since for third orbit n = 3}, \Rightarrow r = 9 r_0$
Correct answer: option 3
Bohr Radius $ r\propto n^2$
$ \text{ Since for third orbit n = 3}, \Rightarrow r = 9 r_0$