Target Exam

CUET

Subject

Physics

Chapter

Semiconductors and Electronic Devices

Question:

Germanium and silicon behave as semiconductors because

Options:

At room temperature, germanium and silicon behave as good conductors

the energy gap between their conduction and valence bands is of the order of 1 eV

the energy required to take out an electron from these atoms is very high

their valence and conduction bands are overlapping

Correct Answer:

the energy gap between their conduction and valence bands is of the order of 1 eV

Explanation:

The correct answer is Option (2) → the energy gap between their conduction and valence bands is of the order of 1 eV