MCQ
In a p-type semiconductor, the acceptor impurity produces an energy level ______
- ✓just above the valence band.
- Bjust below the conduction band.
- Cjust above the conduction band.
- Djust below the valence band.
✓
Answer
Correct option: A.
just above the valence band.
A
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
'The Evil Quartet' is a concept which describes the ______.
Which of the following instruments is not a direct reading instrument?
If $[\mathrm{A}]_0$ is the initial concentration, then the half life of zero order reaction is ____________.
→A progressive wave of frequency 50 Hz is travelling with velocity 350 m/s through a medium. The change in phase at a given time interval of 0.01 s is ______.
Magnetization of a sample is ______.
The Standard deviation of the following frequency distribution
is ______.
→| CI: | 0 - 6 | 6 - 12 | 12 - 18 |
| $f_i$: | 2 | 4 | 6 |
In Young's double slit experiment green light is incident on the two slits. The interference pattern is observed on a screen. Which one of the following changes would cause the observed fringes to be more closely spaced?
Out of the following graphs which graph shows the correct relation for LC parallel resonant circuit?
A.
B.
C.
D.
A.
B.C.D.If p and q are true and rands are false statements, then which of the following is true?
If $x=\sin \theta, y=\sin ^3 \theta$ then $\frac{d^2 y}{d x^2}$ at $\theta=\frac{\pi}{2}$ is
→