An electron changes its position from orbit `n = 4` to the orbit `n = 2` of an atom. The wavelength of the emitted radiation's is `(R =` Rydberg's constant)

An electron changes its position from orbit n=2 to the orbit n=3 of an atom. The wavelength of the emitted radiations is

An electron changes its position from orbit n=2 to the orbit n=4 of an atom. The wavelength of the emitted radiations is (R = Rydberg's constant)

An electron changes its position from orbit n=3 to the orbit n=4 of an atom. The wavelength of the emitted radiations is (R = Rydberg's constant)

An electron makes a transition from orbit n = 4 to the orbit n = 2 of a hydrogen atom. The wave length of the emitted radiations (R = Rydberg's constant) will be

An electron makes a transition from orbit n = 4 to the orbit n = 2 of a hydrogen atom. The wave number of the emitted radiations (R = Rydberg's constant) will be

An electron makes a transition from orbit n = 4 to the orbit n = 2 of a hydrogen atom . The wave number of the emitted radiations (R = Rydberg's constant) will be

An electron makes a transition from orbit n = 4 to the orbit n = 2 of a hydrogen atom. The wave number of the emitted radiations (R = Rydberg's constant) will be