The ratio of the binding energies of the hydrogen atom in the first and the second excited states is

Options

A. `1//4`
B. 4
C. `4//9`
D. `9//4`

Answer

D

Explanation

`E_(n) prop(1)/(n^(2)) implies (E_(1))/(E_(2))=((n_(2))/(n_(1)))^(2)=((3)/(2))^(2)=(9)/(4)`