JEE Main & Advanced
JEE Main Paper Phase-I (Held on 08-1-2020 Evening)
question_answer
The first member of the Balmer series of hydrogen atom has a wavelength of 6561\[\overset{\text{o}}{\mathop{\text{A}}}\,\]. The wavelength of the second member of the Balmer series (in nm) is _______. [JEE MAIN Held on 08-01-2020 Evening]