Hydrogen H, deuterium D, singlyionized helium `He^(+)` and doubly ionized lithium `L^(++)` all have one electron around the nucleus. Consider `n=2` and `n=1` transition. Thewavelengths ofthe emitted radiations are `lamda_(1),lamda_(2),lamda_(3) and lamda_(4)` respectively. Then approximately:

Hydrogen (H) , deuterium (D) , singly ionized helium (He^(+)) and doubly ionized lithium (Li) all have one electron around the nucleus. Consider n = 2 to n = 1 transition. The wavelength of emitted radiations are lambda_(1), lambda_(2), lambda_(3) and lambda_(4) respectively. then approximately

Hydrogen (""_(1)H^(1)) , Deuterium (""_(1)H^(2)) , single ionised Helium (""_(2)He^(4))^(+) and doubly ionised lithium (""_(3)Li^(6))^(++) all have one electron around the nucleus. Consider an electron transition from n=2 to n=1. If the wavelength of emitted radiation are lamda_(1),lamda_(2),lamda_(3) and lamda_(4) respectively then approximately which one of the following is corrent ?

Hydrogen ("_1^1H) deuterium ("_1^2H) , singly ionised helium ("_2^4H)^+ and doubly ionised lithium ("_3^6Li)^(++) all have one electron around the nucleus. Consider an electron transition from n=2 to n=1 . If the wavelengths emitted radiation are lambda_1,lambda_2,lambda_3 and lambda_4 respectively then approximately which one of the following is correct?