Q16. the electron dispersion relation for a one-dimensional metal is given by 6 =2e sin2 sin ka 6 wherek is the momentum, a is the lattice constant, e, is a con

Q16. The electron dispersion relation for a one-dimensional metal is given by 6 =2e sin2 sin ka 6 wherek is the momentum, a is the lattice constant, e, is a constant having dimensions of energy and |kal s r. If the average number of electrons per atom in the conduction band is 1/3, then the Fermi energy is (a) ,/4 (b) E (C) 26,/3 (d) 56,/3