The minimum and maximum values of wavelength in the Lyman series of a H atom are, respectively

H-atom, Z = 1Lyman series, n1 = 1Minimum value of wavelength (Maximum value of wave number), n2 = ∞v¯=1λ=RH112-1∞2λ=1RH=91.2 nmMaximum value of wavelength (Minimum value of wave number), n2 = n1 + 1                                                                                                 = 1 + 1 = 2v¯=1λ=RH112-122=3RH4λ=43RH =4/3 (91.2) = 121.5 nm