According to Bohr atomic model, in which of the following transitions will the frequency be maximum?

option 1:f=E3−E2h=(−1.51)−(−3.4)h=1.89h option 2:f=E2−E1h=(−3.4)−(−13.6)h=10.2h option 3:f=E5−E4h=(−0.54)−(−0.85)h=0.31h option 4:f=E4−E3h=(−0.85)−(−1.51)h=0.66h We can see, option 2 has maximum value.