Calculate the wavelength  in Angstroms  of the photon that is emitted when an electron is
Channel: Doubtnut
Date: 2020-07-26

Calculate the wavelength  in Angstroms  of the photon that is emitted when an electron is Bohr orbit `n = 2` return to the orbit `n = 1` in the hydrogen atom .The  ionisation potential  of the ground  state hydrogen atom is `2.17 xx 10^(-11)` ergs per atom