The band gap in silicon is 1.12 eV. Calculate the maximum wavelength of electromagnetic radiation that results in promotion of electrons from the valence to the conduction band.

Q: . Consider a longitudinal Pockels cell made of ADA (ammonium dihydrogen arsenate) with ordinary…

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Q: Calculate the wavelength of frequency of electromagnetic radiation: 835.6 MHz (common frequency used…

A: The relation between frequency of electromagnetic radiation and wavelength can be given as –

Q: Q1: Explain the electronic distribution of germanium, iron and magnesium if you know that their…

A: Solution to question (1) as per our Company policy:

Q: Calculate the second thinner thin film with n = 5.4, so that there is destructive interference. The…

A: Given:- n1=5.1 n2=5.4 λ= 678  nm

Q: b) Classify metal, semiconductor and dielectric materials from perspective of energy band gap.

A: Energy band gap: The difference between the energy level of the valence band and the conduction band…

Q: A cavity has the dimensions of 12cmx12cmx12cm. We would like to do a microwave experiment where the…

A: Answer: 5 cm

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A: Given: The wavelength of the maximum solar radiation is λ=503 nm.

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A: Given N of oil= 1.29 spills N of water=1.33 spills λ=600nm air

Q: The following diagram (Attached) is band diagram of a CIS/CdS solar cell. Looking at the band…

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Q: A piezoelectric material has a Young’s modulus of 72000 MPa. What stress is required to change its…

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Q: if central bright fringe due to interference for wavelength 5890A a  is shifted to the position of…

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Q: Give an example of a nanomaterial that has electron confinement in a single dimension.

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Q: Calculate the maximum temperature allowed for the silicon if the intrinsic carrier concentration is…

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Q: Calculate mass contained in red light of wavelength 7×10 'm which hits an electron at rest the…

A: Here, effective mass=hνλ Therefore, Effective mass of light=hνλ=6.626*10-343*108*7*10-7=3.14*10-38…

Q: Distinguish between conductors and semiconductors under the following headings: temperature,…

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Q: - what is Crystalline? and why study the structure of crystalline solids? - metals are having good…

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Q: 1. The resistivity of aluminum is 2.8 x 10-8 0m. How long (in meters) a piece of aluminum wire 1.0…

A: Find how long a piece of aluminium wire is needed to give a resistance of 4 ohm's

Q: Draw a plot showing the variation of photoelectric current with collector plate potential for two…

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Q: if Planck's constant were smaller than it is, would quantum phenomena be more or less conspicuous…

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Q: The dependency between electron density and fermi energy (E) for a 2-D free electron gas is,

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Q: State and Explain Kirchhoff's Law of Radiation.

A: Given data  Explain Kirchhoff's Law of Radiation.

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Q: Question is attached

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Q: How many nanostructured dimensions does a C nanotube have? Does a C nanotube with its…

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Q: Q2/ semiconductor at T, has conductivity of 2.5 x 106 s/m. number of electrons of 3x 105 Numbers of…

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Q: The photon wavelength nečessary to promote an electron to the conduction band in intrinsic silicon…

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Q: me and explain three factors that affect the resistivity of metals

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Crystalline Imperfections

The crystalline imperfections are described as the geometrical defects in the crystal due to incorrect arrangement of atoms, impurity, vacancy, and many more. It is not possible to achieve a perfect or ideal crystal, practically.