For the Balmer series in the spectrum of H atom, bar v = RH{1/n21 - 1/n22}, the correct statements among (I) and (IV) are :
(I) As wavelength decreases, the lines in the series converge
(II) The integer n1 is equal to 2
(III) The lines of longest wavelength corresponds to n2 = 3
(IV) The ionization energy of hydrogen can be calculated from wave number of these lines
(1) (II), (III), (IV)
(2) (I), (II), (III)
(3) (I), (III), (IV)
(4) (I), (II), (IV)