Q20.Which of the following frequencies does not belong to FM broadcast. (1) 106 ๐๐ป๐ง (2) 64 ๐๐ป๐ง (3) 99 ๐๐ป๐ง (4) 89 ๐๐ป๐ง
What This Question Tests
This matching question requires knowledge of the location of the Fermi energy level relative to the valence and conduction bands in different types of materials.
Concepts Tested
๐ NCERT Sections This Tests
14.1 โ In An N-Type Silicon, Which Of The Following Statement Is True:
Physics Class 12 ยท Chapter 14
14.1 In an n-type silicon, which of the following statement is true: (a) Electrons are majority carriers and trivalent atoms are the dopants. (b) Electrons are minority carriers and pentavalent atoms are the dopants. (c) Holes are minority carriers and pentavalent atoms are the dopants. (d) Holes are majority carriers and trivalent atoms are the dopants.
14.2 โ Which Of The Statements Given In Exercise 14.1 Is True For P-Type
Physics Class 12 ยท Chapter 14
14.2 Which of the statements given in Exercise 14.1 is true for p-type semiconductos.
12.3 โ A Difference Of 2.3 Ev Separates Two Energy Levels In An Atom. What
Physics Class 12 ยท Chapter 12
12.3 A difference of 2.3 eV separates two energy levels in an atom. What is the frequency of radiation emitted when the atom make a transition from the upper level to the lower level?
๐ Question Details
- Chapter
- Semiconductor
- Topic
- Energy bands and Fermi level
- Year
- 2023
- Shift
- 01 Feb Shift 1
- Q Number
- Q20
- Type
- MCQ
- NCERT Ref
- Class 12 Physics Ch 14: Semiconductor Electronics: Materials, Devices and Simple Circuits
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