The wavelength of the first Lyman lines of hydrogen `He^(+)` and `Li^(2+)` ions and `lamda_(1),lamda_(2)& lamda_(3)` the ratio of these wavelengths is

The wavelength of K_(alpha) X-ray for lead isotopes Pb^(208), Pb^(206), Pb^(204) and lamda_(1), lamda_(2) and lamda_(3) respectively. Then

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 ?

Energy of a photon = E , kinetic energy of a proton is also the same as energy of the photon. Corresponding wavelength of the photon and de Broglie wavelength of the proton are lamda_(1) and lamda_(2) , respectively. What is the relation between E and the ratio of lamda_(1) and lamda_(2) ?

The wavelength of the first balmer line caused by a transition from the n = 3 level to the n = 2 level in hydrogen is lamda_(1) . The wavelength of the line caused by an electronic transition from n =5 to n =3 is

The wavelength of the first Balmer line caused by a transition from the n = 3 level to the n = 2 level in hydrogen is lamda_(1) . The wavelength of the line caused by an electronic transition from n = 5 to n = 3 is -

The wavelength of the first balmer line caused by a transition from the n = 3 level to the n = 2 level in hydrogen is lamda_(1) . The wavelength of the line caused by an electronic transition from n =5 to n =3 is

A doubly ionised Li atom is excited from its ground state(n = 1) to n = 3 state. The wavelengths of the spectral lines are given by lamda_(32), lamda_(31) and lamda_(21) . The ratio l_(32)//lamda_(31) and l_(21)//l_(31) are, respectively

The wavelength of the first line of the Balmer series of hydrogen atom is lamda . The wavelength of the corresponding line line of doubly ionized lithium atom is