Why the properties of nanomaterials affected by quantum confinement?
Q: Write a short note on transmission electron microscopy
A: We have to write a short note on Transmission electron microscopy also known as TEM
Q: Explain Atomic Spectra.
A: There are two types of atomic spectra: Emission spectrum of an element is defined as the spectrum of…
Q: Explain Fleming's left hand rule. Also give its interpretation.
A: When a current carrying conductor is placed in a magnetic field, a force acting on the conductor in…
Q: Why is Visible radiation able to remove electrons from sodium but not from zinc?
A: Photoelectric effect: It states that the when light falls on a metal surface it emits electrons.…
Q: A positive hole in a semiconductor is (A) an artificially created particle. (B) an anti-particle of…
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Q: How magnetic confinement can help to achieve break-even conditions?
A: Confinement of the hot plasma is the major problem in achieving thermonuclear fusion. The hot plasma…
Q: According to Moore's Law, if a transistor is 183.8 microns wide this year, how many microns wide…
A: According to Moore's lawNumber of microns=Microns per transistor in current year2Upcoming count of…
Q: Which of these diodes convert electrical energy into light? [A] Photodiodes [B] Light emitting…
A: Photodiodes are electrical devices used to convert light energy into electrical current , which is…
Q: What principal advantage does an electron microscope have over an optical microscope?
A: Given: electron microscope , optical microscope
Q: What 2 factors are the source of an atom's magnetic field?
A: The magnetism of a solid originates from the electrons of atoms. As the electrons (which is a…
Q: How many ways are there to arrange the letters in the word "ABBCCCDDDD"? (I know it's not a real…
A:
Q: How do electrons fill energy orbitals?
A: The electrons fill the atomic energy orbitals in a certain pattern depending on the energy of the…
Q: How does fluorescence change as the semiconductor particles reach the nanoscale?
A: Introduction: Fluorescence is the effect where light is produced by the substance when it absorb the…
Q: How do ionic compounds appear to our eye?
A: Ionic compounds consist of oppositely charged ions that are held together by bond known as ionic…
Q: Describe the important concepts of Series elements?
A: Series element
Q: Why do lithium, potassium, and sodium exhibit similar chemical properties?
A: Given: Lithium, potassium, sodium
Q: Laser ablation is an effective tool for probing micro areas of solid samples. How does it work?
A: The mechanism of laser ablation depends on physical properties of metals and environment medium.…
Q: Colculote the shortest wavelenght of X-roys produced in the Bremsstrahlng processl which electrons…
A: Given : V = 2.5 x 104 V
Q: What are tunneling nanotubes?
A: Introduction: A tunneling nanotube or membrane nanotube is a term that has been applied to…
Q: If atoms exist, why can’t we see them with visible light?
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Q: Relevance of g-f
A: The g-factor is also called as Lande's g-factor. It is basically a quantity of dimensionless and…
Q: The total value of the magnetic quantum number are _______________ a) 2n b) 2l c) 2n + 1 d) 2l +…
A: D
Q: Why is phosphorescence emission weak in most substances
A: Phosphorescence is the emission of light from a substance after it has been exposed to radiation and…
Q: Why the semiconductor and metal nanoparticles have different color?
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Q: Compare Electron Ionization and Matrix assisted laser desorption Ionization (MALDI) ? Please answer…
A: Electrospray ionization (ESI-MS) and matrix assisted laser desorption-ionization (MALDI-MS) were…
Q: What are the differences and similarities between atomic levels, atomic states, and atomic spectral…
A: An atomic level is a characterized by the principal quantum number n. Electrons can occupy atomic…
Q: What are the workings of a selenium photocopier?
A: Selenium is used extensively in electronics as selenium has good photovoltaic and photoconductive…
Q: Why do lithium, potassium, and sodium exhibit similar chemical properties?
A: The chemical properties of an element will depend on the number of electrons in its outermost shell…
Q: Why are the elements with good electrical conductivities also generally good thermal conductors?
A: Conductivity is the property of the metal by which it able to conduct heat. It is property of the…
Q: 27. Show how to connect the diodes in a center-tapped rectifier in order to produce a negative-…
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Q: How dO atomic potentials influence the shape of energy bands?
A: The periodic potentials is required to find the energy levels in a semiconductor. This requires the…
Q: Explain, with detailed reasoning, if you agree or disagree with the following statements. (i) Rigid…
A: Fluorescence is caused by the ability of some molecules to absorb the energy of a photon and hence…
Q: why transmission of electrons occours at metal boundry during thermonic emission?
A: Thermionic emission is the emission of electrons by thermal energy. The Band Theory suggests two…
Q: The splitting of energy levels in the presence of a magnetic field (Zeeman effect) comes about…
A: Splitting due to Zeeman effect is due to the term of the form (which acts as a perturbation ) Where…
Q: Calculate in unit of Fermi the distance of closest approach for a head-on collision between an alpha…
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