Select the correct option for the band gap energies of Ge, Si and GaAs. Where E(Ge) = band gap energy of Ge, E(Si) = band gap energy of Si and E(GaAs) = band gap energy of GaAs
1
E(GaAs) > E (Si) > E (Ge)
2
E(Ge) > E (GaAs) > E (Si)
3
E(GaAs) > E (Ge) > E (Si)
4
E(Ge) > E (Si) > E (GaAs)