The energy levels of a hypotherical one electron atom are shown in figure

The initial kinetic energy of an electron is `11 eV` and it interact with the above said hypothetical one electron atom , the minimum energy carried by the electron after interaction is

Options

A. `0.7 eV`
B. `0.3 eV`
C. `0.9 eV`
D. `1 eV`

Answer

A

Explanation

As `E_(2) - E_(1) = 15.6 - 5.3 = 10.3 eV`
hence energy of the electron after interaction is
`11 - 10.3 eV = 0.7 eV`.