The magntic moment `(mu)` of a revolving electron around the mucleaus varies with principle quantum number `n` as

Options

A. `mupropn`
B. `muprop1//n`
C. `mupropn^(2)`
D. `muprop1//n^(2)`

Answer

A

Explanation

Magnetic moment `mu` of a revolving electron is given by
`mu=(e)/(2m)L=(e)/(2m).(nh)/(2pi)=((eh)/(2m)).(n)/(2pi)=(n)/(2pi)mu_(B)`
Hence `" " mu_(B)=(eh)/(2m)` is Bohr magneton
`:. " " mu propn`