For Balmer series in the spectrum of atomic hydrogen, the wave number of each line is given by bar(v) = R_(H) ((1)/(n_(1)^(2)) - (1)/(n_(2)^(2))) where R_(H) is a constant and n_(1) and n_(2) are integers. Which of the following statement (s) is (are) correct ? 1. As wavelength decreases, the lines in the series converge 2. The integer n_(1) is equal to 2 3. The ionization energy of hydrogen can be calculated from the wave numbers of these lines 4. The line of longest wavelength corresponds to n_(2) = 3

For Balmer series in the spectrum of atomic hydrogen, the wave number

1.	For Balmer series in the spectrum of atomic hydrogen, the wave number of each line is given by bar(v) = R_(H) ((1)/(n_(1)^(2)) - (1)/(n_(2)^(2))) where R_(H) is a constant and n_(1) and n_(2) are integers. Which of the following statement (s) is (are) correct ? 1. As wavelength decreases, the lines in the series converge 2. The integer n_(1) is equal to 2 3. The ionization energy of hydrogen can be calculated from the wave numbers of these lines 4. The line of longest wavelength corresponds to n_(2) = 3
Answer» 1, 2 and 3 2, 3 and 4 1, 2 and 4 2 and 4 only Solution :(1) is correct because as wavelength decreases, the spacing between the line `(Delta LAMDA)` becomes smaller and smaller. (2) is correct because for Balmer series, `n_(1) = 2` (4) is correct because `n_(2) = 3 " to " n_(1) = 2` will produce the longest wavelength (being 1st line)