1. The photoelectric effect experiment is often carried out byusing a mercury light source to illuminate a particular surface.The emission spectrum of mercury has strong lines at wavelengths of365.5 nm (ultraviolet), 404.7 nm (violet), 435.8 nm (blue), and546.1 nm (green). The light can be passed through a diffractiongrating to separate the light into these different wavelengths.Assume that photons of all these wavelengths have enough energy toovercome the work function of the surface. If the maximum kineticenergy of the emitted electrons is 1.26 eV when the green lightilluminates the surface, what will the maximum kinetic energy ofthe emitted electrons be when the blue light illuminates thesurface?
2. Two energy levels in a particular atom are at energies of−23.4 eV and −27.3 eV. When an electron makes a transition from oneof these levels to the other, a photon is emitted. Calculate thewavelength of the photon. nm
