wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

If the band-gap between valence band and conduction band in a material is 5.0 eV, then the material is a/an

A
semiconductor
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
good conductor
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
superconductor
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
insulator
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct option is D insulator
The band gap in a conductor is Zero.
The band gap in semiconductor is nearly equal to 1eV
For example : For silicon, band gap is 1.11eV

Insulators generally have very large band gap and thus they do not allow the electrons to jump from valance band to conduction band.
The band gap in an insulator 5eV
For example : Diamond has a band gap of 5.5eV

Hence the above given material with band gap of 5.0eV must be an insulator.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Energy Band Diagram
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon