Using appendix f, a) give the largest and smallest band gap energies e, (ev) for the semiconductors listed. b) calculate the wavelengths of light corresponding to these band gap energies. c) referring to the e, (ev) corresponding to the binary iii-v compounds, for a given iii element, how does e, vary with the size of the v element? d) for a given v element, how does e, vary with the size of the iil element? e) why does this variation occur? (hint: think about the coulomb force.) the same type of behavior occurs for the ii-vi compounds.