Q 12-12-127NEETNEET 2022Top questionEasy
Let $T_1$ and $T_2$ be the energy of an electron in the first and second excited states of hydrogen atoms, respectively. According to the Bohr's model of an atom, the ratio $T_1 : T_2$ is
Answer: (A) $9 : 4$
First excited state: $n = 2$; second excited state: $n = 3$. In Bohr's model $E_n \propto \dfrac{1}{n^2}$.
$$\frac{T_1}{T_2} = \frac{1/4}{1/9} = \frac{9}{4}$$
Solution by Sreeraj P, M.Sc Physics