On the basis of band theory of solids the semiconductors have _____________________?
AA completely filled valence band a totally empty conduction band and a very wide forbidden band
BA completely filled valence band a partially filled conduction band and a narrow forbidden band
CA party filled valence band and totally empty conduction band
DA partly filled valence band a totally empty conduction band and a wide forbidden band
Correct answer
B. A completely filled valence band a partially filled conduction band and a narrow forbidden band
Explanation
A completely filled valence band a partially filled conduction band and a narrow forbidden band is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.