Match the following :   COLUMN I   COLUMN II 1 Knee voltage of Ge p-n junction diode A 0.7 V 2 Knee voltage of Si p-n junction diode B 0.3 V 3 Energy gap of Ge semiconductor C 1.1 eV 4 Energy gap of Si semiconductor D 0.7 eV

1:B; 2:A; 3:D; 4:C 1:D; 2:C; 3:B; 4:A 1:A; 2:B; 3:C; 4:D None of these.

1:B; 2:A; 3:D; 4:C

Correctly matched pairs are :   COLUMN I   COLUMN II 1 Knee voltage of Ge p-n junction diode A 0.3 V 2 Knee voltage of Si p-n junction diode B 0.7 V 3 Energy gap of Ge semiconductor C 0.7 eV 4 Energy gap of Si semiconductor D 1.1 eV Note that the knee voltage is voltage and is of the order of Volts and Energy gap is energy and is of the order of eV.