Which of the following variant of hydrogen spectrum results from nuclear spin interaction with that of electron?

Which of the following variant of hydrogen spectrum results from nucle

1.	Which of the following variant of hydrogen spectrum results from nuclear spin interaction with that of electron?
Answer» Fine spectrum Stark effect Zemann effect Hyperfine spectrum Solution :`lambda = (h)/(SQRT(2mq.v)), (lambda_(alpha))/(lambda_(p)) = sqrt((m_(p)(1).V)/(4m_(p).(2).x)), x = (v)/(8)`