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Atomic and Nuclear Physics
A photon of wavelength 6000nm scatters from an electron at rest. The electron recoils with an energy of 60Kev . Calculate the energy of scattered photon and the angle through which it is scattered.
Atomic and Nuclear Physics
Po²¹² undergoes alpha decay. Alpha particle have K.E of 8.776MeV. Assume the mass of Alpha particle to be 6.67*10^(-27). Calculate their velocity
Atomic and Nuclear Physics
Why is Z<N in heavier nuclei ?
Atomic and Nuclear Physics
The potential energy of an fcc latticw is described by expression
U(r)= -4€[(p०/r)^6-(p०/r)^12]
Where É=3.12×10-³ ev and p•= 2.82Å. Calculate the lattice parameter of the crystal lattice.
U(r)= -4€[(p०/r)^6-(p०/r)^12]
Where É=3.12×10-³ ev and p•= 2.82Å. Calculate the lattice parameter of the crystal lattice.
Atomic and Nuclear Physics
An electrically neutral chlorine atom has 17 electrons orbiting the nucleus. One of the stable isotopes of this element has 18 neutrons in the nucleus. What is the atomic mass number of this isotope?
Atomic and Nuclear Physics
if 5000 J of work is used to raise a 102 kg crate to a shelf in a warehouse, how high was the crate raised? (express your answer in units of meters
Atomic and Nuclear Physics
The transition rate of electrons from the first excited state of the hydrogen atom to
the ground state is ~108/s. What is the minimum range of energies of the resulting
photons that are emitted?
the ground state is ~108/s. What is the minimum range of energies of the resulting
photons that are emitted?
Atomic and Nuclear Physics
4. The first excited state of E2 of hydrogen atom is 10.2 eV above the ground state E1. The degeneracy of the ground and the first excited states are 2 and 8 respectively. Determine the ratio of no. of atoms in the first excited state to the no. in the ground state at T=6000K.
Atomic and Nuclear Physics
A single photon of energy 100 MeV decays into an electron and a positron. Which of the following
statements is true?
(a) It does not violate any of the above conservation laws.
(b) This process violates energy momentum conservation.
(c) This process violates angular momentum conservation
(d) This process violates lepton number conservation.
statements is true?
(a) It does not violate any of the above conservation laws.
(b) This process violates energy momentum conservation.
(c) This process violates angular momentum conservation
(d) This process violates lepton number conservation.
Atomic and Nuclear Physics
Under certain conditions, a beam of electrons impinging on a crystal surface will diffract
and a scattering pattern of the beam can be obtained. What is the approximate kinetic
energy of the electrons needed in order to see the pattern?
(Assume the lattice spacing of the crystal to be 0.4nm )
and a scattering pattern of the beam can be obtained. What is the approximate kinetic
energy of the electrons needed in order to see the pattern?
(Assume the lattice spacing of the crystal to be 0.4nm )
