Physics

Problem

According to Bohr's theory, the time averaged magnetic field at the centre (i.e. nucleus) of a hydrogen atom due to the motion of electrons in the

n^{\text{th}}

orbit is proportional to : (

n = \text{principal quantum number}

) [Main Online April 8, 2017] a.

n^{-4}

n^{-5}

n^{-3}

n^{-2}