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Atoms and Nuclei Test - 86
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Atoms and Nuclei Test - 86

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  • Question 1/10
    4 / -1
    When U235 is bombarded with one neutron, the fission occurs and the products are three neutrons, 36Kr94 and
    Solutions

  • Question 2/10
    4 / -1
    The example of nuclear fusion is
  • Question 3/10
    4 / -1
    If r1 and r2 are the radii of the atomic nuclei of mass numbers 64 and 125 respectively, then the ratio (r1 / r2) is
    Solutions

  • Question 4/10
    4 / -1
    The subatomic particles proton and neutron fall under the group of
  • Question 5/10
    4 / -1
    Sun energy is due to
  • Question 6/10
    4 / -1
    Assume that a neutron breaks into a proton and an electron. The energy released during this process is (mass of neutron = 1.6725 × 10–27 kg, mass of proton = 1.6725 × 10–27 kg, mass of electron = 9 × 10–31 kg)
    Solutions

  • Question 7/10
    4 / -1
    The half-life period of radium is 1600 years. Its average life time will be
    Solutions

  • Question 8/10
    4 / -1
    If λ is decay constant and N the number of radioactive nuclei of an element, the decay rate (R) of that element is
    Solutions

  • Question 9/10
    4 / -1

    Solutions

  • Question 10/10
    4 / -1
    A radioactive nucleus (initial mass number A and atomic number Z) emits 3 α - particles and 2 positrons. The ratio of number of neutrons to that of protons in the final nucleus will be
    Solutions

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