Question

Select One Option Correct from the following : The radius of the orbit of an electron in a Hydrogen-like atom is $4.5a_{0}$, where $a_{0}$ is the Bohr radius. Its orbital angular momentum is $\frac{3h}{2h}$. It is given that h is Planck constant and R is Rydberg constant. The possible wavelength(s), when the atom de-excites, is (are)
(A) $\frac{9}{32R}$
(B) $\frac{9}{16R}$
(C) $\frac{9}{5R}$
(D) $\frac{4}{3R}$

Answer 1

your answer is A.$\frac{9}{32R}$