3) The following questions are regarding the semiconductor alloy, InxGa1-xAs. a) Name the crystal structure [2pt]. b) Draw the lattice constant as a function of x. Briefly explain why you did or did not draw a straight line [3pt]. [Hint: Which atoms is larger, In or Ga?] c) Draw the band gap as a function of x. Briefly explain why you did or did not draw a straight line [3pt]. d) Draw the electron mobility as a function of x. Briefly explain why you did or did not draw a straight line [3pt].