Which one has the greatest energy gap ?
Correct answer: D. Non metals
- A. Semi conductor
- B. Conductor
- C. Metals
- D. Non metals
Explanation
Non-metals that are electrical insulators generally have the largest forbidden energy gaps, while metals have overlapping or zero effective gaps and semiconductors have small gaps. The likely alternative is semiconductor, but its defining feature is a narrow gap, not the greatest one.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Quantum Theory and Radiation
Quantum theory treats electromagnetic radiation as packets of energy called photons, with energy proportional to frequency through E equals hf. The topic covers Planck's hypothesis, photon momentum, the photoelectric effect, threshold frequency, work function and wave particle duality, distinguishing quantised energy exchange from classical continuous radiation.
Practise Dawn of Modern Physics
739 free Dawn of Modern Physics MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Quantum Theory and Radiation questions
With increase in temperature the electrical conductivity of intrinsic semi conductor___________________?
On the basis of band theory of solids the semiconductors have _____________________?
The bulk properties of materials such as their mode of fracture can be related to their____________________?
The band theory of solids explains satisfactorily the nature of_________________?
The first book of Physics was written by__________?
X-rays are defined as: