In Franck-Hertz experiment, the first dip in the current-voltage graph for hydrogen is observed at 10.2 V. The wavelength of light emitted by hydrogen atom when excited to the first excitation level i s ______ nm. (Given hc = 1245 eV nm, e = 1.6 × 10⁻¹⁹ C).
Physics · Atomic Structure and X-rays · atomic structure and bohr atomic model
In Franck-Hertz experiment, the first dip in the current-voltage graph for hydrogen is observed at 10.2 V. The wavelength of light emitted by hydrogen atom when excited to the first excitation level is ______ nm. (Given hc = 1245 eV nm, e = 1.6 × 10⁻¹⁹ C).