The theory of electronic conduction in solids, which satisfactorily explains the properties of conductors, insulators and semi-conductor,is?
A
string theory
B
particle theory
C
group theory
D
band theory
Verified Correct Answer: D.
Physical Principles & Numerical Solution
Band Theory: This theory describes the energy levels of electrons in solids as bands. It explains how the bands (valence and conduction bands) determine the electrical properties of materials.
Source: Myschool Past Questions Archive (Record #13892)