A photon of 3.53 x 10-28 kg.m/s momentum is emittedfrom a hydrogen atom. To what spectrum series does thisphoton belong, and from what energy level was it ejected?

By what fraction would the wavelength of one component of the 630.25-nm Fe I spectral line change as a consequence of a magnetic field of 0.3 T? 6 paints)

In an experiment similar to that of Franck and Hertz, deuterium (a proton and a neutron in the nucleus) is bombarded with a beam of electrons and excitation potentials of 10.2V and 12.1V are obtained. a) Explain the observation of three different spectral lines of emission that accompany these excitations. Suggestion: Draw an energy level diagram. b) Determine the wavelengths of the observed spectral lines.

For an electron to escape from the surface of aparticular metal, it needs to absorb a minimum of6.75x10-19J of energy. Calculate the a) frequency b) wavelengthof a photon with just enough energy to cause this.