MHT CET · Physics · Semiconductors
Which one of the following statements is true? A p-type semiconductor is doped with
- A trivalent impurity and electrons are majority carriers.
- B pentavalent impurity and electrons are minority carriers.
- C pentavalent impurity and holes are minority carriers.
- D trivalent impurity and holes are majority carriers.
Answer & Solution
Correct Answer
(D) trivalent impurity and holes are majority carriers.
Step-by-step Solution
Detailed explanation
The correct option is 2 Holes are the majority carriers and trivalent atoms are the dopants.Explanation:In p-type semiconductor an intrinsic semiconductor is doped with trivalent impurities that creates deficiencies of valence electrons called holes which are majority charge carriers.
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Physics
- Two light rays having the same wavelength \(\lambda\) in vacuum are in phase initially. Then the first ray travels a path \(L_1\) through a medium of refractive index \(\mu_1\), while the second ray travels a path of length \(L_2\) through a medium of refractive index \(\mu_2\). The two waves are then combined to observe interference. The phase difference between the two waves isMHT CET 2022 Hard
- The density of a metal at normal pressure \(\mathrm{P}\) is \(\varrho .\) When it is subjected to an excess pressure, the density becomes \(\varrho^{\prime}\). If \(\mathrm{K}\) is the bulk modulus of the metal, then the ratio \(\frac{\varrho^{\prime}}{\varrho}\) isMHT CET 2020 Medium
- Charges \(3 \mathrm{Q}, \mathrm{q}\) and Q are placed along x -axis at positions \(\mathrm{x}=0, \mathrm{x}=\frac{1}{3}\) and \(\mathrm{x}=1\) respectively. When the force on charge Q is zero, the value of \(q\) isMHT CET 2024 Easy
- The point charges \(+\mathrm{q},-\mathrm{q},-\mathrm{q},+\mathrm{q},+\mathrm{Q}\) and -q are placed at the vertices of a regular hexagon ABCDEF as shown in figure. The electric field at the centre of hexagon ' \(O\) ' due to the five charges at \(A, B, C, D\) and \(F\) is twice the electric field at centre ' \(O\) ' due to charge \(+Q\) at \(E\) alone. The value of Q is
MHT CET 2025 Medium - The extension in a wire obeying Hooke's law is 'x'. The speed of sound in the stretched wire is 'V'. If the extension in the wire is increased to \(4 \mathrm{x}\), then the speed of sound in a wire isMHT CET 2020 Medium
- If two planets have their radii in the ratio \(x: y\) and densities in the ratio \(m: n\), then the acceleration due to gravity on them are in the ratioMHT CET 2023 Medium
More PYQs from MHT CET
- The correct order of boiling points of alkyl halides isMHT CET 2019 Medium
- Given below are two statements.
Statement I - The template strand with free 3' end is called lagging template and strand with free end is called leading template. 5'
Statement II - Replication always start at C - 3 end of template strand and proceed towards C - 5 end of template.
In the light of above statements, select the correct option given below:MHT CET 2025 Medium - The length of perpendicular drawn from the point \(2 \hat{i}-\hat{j}+5 \hat{k}\) to the line \(\overline{\mathrm{r}}=(11 \hat{\mathrm{i}}-2 \hat{\mathrm{j}}-8 \hat{\mathrm{k}})+\lambda(10 \hat{\mathrm{i}}-4 \hat{\mathrm{j}}-11 \hat{\mathrm{k}})\) isMHT CET 2021 Medium
- Which of the following species is not tetrahedral?MHT CET 2025 Medium
- If one 's', three \(^{4} \mathrm{p}^{\prime}\) and one 'd' atomic orbitals take part in hybridization, then number of hybrid orbitals formed areMHT CET 2020 Easy
- With usual notations, if the angles \(A, B, C\) of a \(\triangle A B C\) are in A.P. and \(b: c=\sqrt{3}: \sqrt{2}\),
then \(\angle \mathrm{A}=\)MHT CET 2020 Easy