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 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 (._(1)H^(1)) , Deuterum (._(1)H^(2)) , singly ionised Hellium (._(2)He^(4))^(+) and doubly ionised lithium (._(3)Li^(6))^(++) all have one electron around the nucleus. Consider an electron tranition from n=2 to n=1 . If the wave lengths of emitted radiation are lambda_(1),lambda_(2),lambda_(3) and lambda_(4) respectively then approximately which one of the follwing is correct ?

Hydrogen (_(1)H^(1)) Deuterium (_(1)H^(2)) singly omised helium (_(1)He^(1)) and doubly ionised lithium (_(1)Li^(6))^(++) all have one electron around the nucleus Consider an electron transition from n = 2 to n = 1 if the wavelength of emitted radiartion are lambda_(1),lambda_(2), lambda_(3),and lambda_(4) , repectivelly then approximetely which one of the following is correct ?

The wavelengths and frequencies of photons in transition 1,2 and 3 for hydrogen like atom are lambda_(1),lambda_(2),lambda_(3), v_(1),v_(2) and v_(3) respectively. Then:

The wavelength of the short radio waves, microwaves, ultraviolet waves are lambda_(1),lambda_(2) and lambda_(3) , respectively, Arrange them in decreasing order.

The wavelengths of photons emitted by electron transition between two similar leveis in H and He^(+) are lambda_(1) and lambda_(2) respectively. Then :-

Two sound waves of wavelengths lambda_(1) and lambda_(2) (lambda _(2) gt lambda_(1)) produces n beats//s , the speed of sound is