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Find the constant C in units of eV-nm.
3. a) ln the photoelectric effect, light of a given wavelength is incident on a metal surface in a vacuum and, if the wavelength is short enough.c a uses electrons to be emitted. If W is the work function of the metal surface and T is the kinetic energy of the electrons, then their relation to wavelength is given b1'C/1,: T+W. Find the constant C in units of eV-nm.
b) If W : 4 .7 eY , what wavelength of light is required to barely eject an electron?
c) If W :4.7 eY andT : 1.5e V, what is the wavelength of the light?
4. Given the Debye temperatures for the following materials,
Find the corresponding maximum frequencies for the waves in these materials according to the simple Debye model.
Nonzero Solutions to equation
0 : 1 - x / n - e - *
With elaborate explanations and calculations, the problems below are solved.