In Bohr modal of hydrogen atom, the force on the electron depends on the principal quantum number as

Options

A. `F prop n^(2)`
B. `F prop (1)/(n^(2))`
C. `F prop n^(4)`
D. `F prop (1)/(n^(4))`

Answer

D

Explanation

`F = (m v^(2))/( r)`
But `v prop (1)/(n) and r prop n^(2)`
`implies F prop (1)/(n^(4))`