Example: 9.35. For a neutron star with radius 10 km and mass 4.5 x 10³0 kg find the Fermi energy of neutrons.

Q: Consider the set of measured values [7.8,7.1,4.3,9.8,6.3,9.6,6.0,4.7,1.4,2.4]. What is the standard…

A: Given values are 7.8, 7.1, 4.3, 9.8, 6.3, 9.6, 6.0, 4.7, 1.4, 2.4 Here, number of values=10The…

Q: 1. Neutrons produced in a reactor are known as thermal neutrons because their kinetic 3 energies…

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Q: Given a photon with wavelength 430 nm, find the energy and momentum of the photon. What equivalent…

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Q: Estimate the Fermi temperatures of. (a) liquid ³He (density 81 kg m-³), and (b) the neutrons in a…

A: Given: Density,ρ=81kg/m3Planck's Constant,h=6.626×10-34JsBoltzmann's…

Q: Q.4. Uranium dioxide (UO,)is an oxide of uranium used in nuclear fuel rods in nuclear reactors.…

A: The mass attenuation coefficient is defined as; Where μ be defined as the attenuation coefficient.…

Q: Determine the number of energy states per cubic cm in GaAs between Ev and Ev -0.65 eV at T = 300K.…

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Q: The Boltzmann constant has a value of kg = 0.69503476 cm-1/K. At what temperature would kBT be…

A: 1st we find energy level spacing between  E¹and E⁰ then equate it with KBT to get the temperature

Q: For a spin 1/2 paramagnet with localised moments in the low-field, high-temperature limit the…

A: **As per our company guidelines we are supposed to solve only one question (if there are multiple…

Q: 3.29. Determine the air kerma rate at a distance of 1.5 m from the point isotropic source 13ªCS with…

A: Air kerma  Rate constant = r2AxKa   Where Ka  is activity and r=1  m as reference point  area = A =…

Q: 4. 633 DENA 20 What would have happened if aluminium had been used instead of gold in the alpha…

A: The objective of the question is to understand the potential outcome if aluminium was used instead…

Q: Thermal equilibration: radiative and nonradiative contributions. A collection of two-level atoms in…

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Q: At what temperature hydrogen molecules will escape from the earth's surface? (Take mass of hydrogen…

A: Escape velocity is the minimum velocity required by an object to escape the gravitational force of…

Q: What if electrons were spin-3/2 instead of spin-1/2. What would be Z for the first noble gas in this…

A: The objective of the question is to determine the atomic number (Z) of the first noble gas if…

Q: Can you explain how we get 8.25 from substituting 8.24 in 8.23?

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Q: What temperature, in ∘C , is a blackbody whose emission spectrum peaks at 2.90 μm ?

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Q: 4. The first excited state of the helium atom lies at an energy 19.82 eV above the ground state. If…

A: Solution     Given dataEnergy difference E0−E1=19.82eVDegeneracy for ground state go=1Degeneracy for…

Q: how much energy does it take to singly ionize it?

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Q: Problem 2: Neutron star A star that is too heavy to stabilize as a white dwarf can collapse further…

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Q: . Suppose you have a sphere with a surface area of about 1.3 m². If the temperature of the sphere…

A: Power emitted from the sphere.  Given, Surface areaA=1.3 m2temperature of the sphereT=373 K