( ii ) Balmer Series When electron jumps from n = 3 , 4 , 5 ,… orbit to n = 2 orbit , then a line of Balmer series is obtained .
This series lies in visual region .
( iii ) Paschen Series When electron jumps from n = 4 , 5 , 6 ,… orbit to n = 3 orbit , then a line of Paschen series is obtained .
This series lies in infrared region
( iv ) Brackett Series When electron jumps from n = 5,6 , 7 …. orbit to n = 4 orbit , then a line of