Suppose that a neutron at rest in free space decays into a proton and an electron. This process would violate
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Engineering Physics · all questionsNuclear and Particle Physics
Nuclear and Particle Physics
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A thermal neutron having speed v impinges on a 235U nucleus. The reaction cross-section is proportional to
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Which of the following functions describes the nature of interaction potential V(r) between two quarks inside a nucleon? (r is the distance between the quarks and a and b positive constants of suitable dimensions).
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The experimentally measured spin g factors of proton and a neutron indicate that
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An O16 nucleus is spherical and has a charge radius R and a volume According to the empirical observations of the charge radii, the volume of the 54128Xe nucleus assumed to be spherical is
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The spin and parity of nucleus as predicted by the shell model are respectively
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The evidence for the non-conservation of parity β in β-decay has been obtained from the observation that the β intensity
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The masses of a hydrogen atom, neutron and are given by 1.0078, 1.0087 and 238.0508 respectively. The binding energy of is therefore approximately equal to (taking 1 amu = 931.64 MeV)
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Which one of the following nuclear reactions is possible?
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The asymmetry terms in the Weizsacker semi-empirical mass formula is because of
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In the quark model which one of the following represents a proton?
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A nucleus having mass number 240 decays by α-emission to the ground state of its daughter nucleus. The Q value of the process is 5.26 MeV. The energy (in MeV) of the α particle is
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A relativistic particle travels a length of 3 × 10-3 m in air before decaying. The decay process of the particle is dominated by
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Pick the wrong statement.
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The strange Baryon has the quark structure
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According to the shell model, the ground state of nucleus is
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The nuclear spins of and nuclei are respectively,
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A heavy nucleus is found to contain more neutrons than protons. This fact is related to which one of the following statements:
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Let and denote the isospin state with and of a nucleon respectively. Which one of the following two-nucleon states has
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Typical energies released in a nuclear fission and a nuclear fusion reactions are respectively
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