The forbidden energy gap in Ge is :-

The forbidden energy gap in Ge in 0.72 eV Given, hc=12400" eV"-Å The maximum wavelength of radiation that will generate electron hole pair is

The forbidden energy gap in an insulator is of the order of

For germenium crystal, the forbidden energy gap in joules is

For germanium crystal, the forbidden energy gap in joule is

In germanium crystal, the forbidden energy gap in joule is

The forbidden energy gap is largest in

The forbidden energy gap in an intrinsic semiconductor is

The forbidden energy gap in a semiconductor is of the order of