Q. 324.0( 5 Votes )

The Balmer series in the hydrogen spectrum corresponds to the transition from n1 = 2 to n2 = 3,4,.......... This series lies in the visible region. Calculate the wavenumber of the line associated with the transition in Balmer series when the electron moves to n = 4 orbit. (RH= 109677 cm-1)

Answer :

o According to Bohr’s model for the hydrogen atom


H cm-1


here, n1 = 2 and n2 = 4 and H = Rydberg’s constant = 109677


Hence, wave number -v= 109677 ( )




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