The electric potential between a proton and an electron is given by `V = V_0 ln( r /(r_0))` , where `r_0` is a constant. Assuming Bhor model to be applicable, write variation of `r_n` with `n`, being the principal quantum number. (a) `r_n prop n` (b) `r_n prop (1)/(n)` (c ) `r_n prop n^2` (d)`r_n prop (1)/(n^2)`

Options

A. `r_n prop n `
B. `r_n prop 1/n`
C. `r_n prop n^2`
D. `r_n prop 1/n^2`

Answer

A