The more narrow band gap absorbs more light true or false ?
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Increasing the band gap of an intrinsic semiconductor reduces the carrier concentration in conduction band true or false?
Which of the following statements are reasons that a material is agood electrical conductor. True/FalseThere is an energy gap between the valence band and the conductionband, but it is only a few eV wide.There is an energy band gap, but the Fermi energy is well within anunfilled energy band.Because there are no gaps in the energy bands of thematerial.The Fermi energy is in the middle of an energy gap that is morethan 3 eV wide.There is a small (1 eV) energy gap between the filled valence bandand the next higher band where electrons can exist.
A blackbody is an idea system thata. absorbs 100% of the light incident upon it, but cannot emitlight of its own (i.e., a "black" boody)b. emits 100% of the light it generates, but cannot absorbradiation of its ownc. either absorbs 100% of the light incident upon it, or emits 100%of the radiation it generatesd. absorbs 50% of the light incident upon it, and emits 50% of theradiation it generates