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12th Standard English Medium Physics Subject Atomic and Nuclear physics Creative 5 Mark Questions with Solution Part - I

12th Standard

    Reg.No. :
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Physics

Time : 00:30:00 Hrs
Total Marks : 25
    5 x 5 = 25
  1. What are the drawbacks of Rutherford atom model?

  2. Explain Chain reaction.

  3. Two stable isotopes of lithium \(_{ 3 }^{ 6 }{ Li }\) and \(_{ 3 }^{ 7 }{ Li }\) have respective abundances of 7.5% and 92.5%. These isotopes have masses 6.01512 u and 7.01600 u respectively. Find the atomic mass of lithium.

  4. In a nuclear reactor, \(_{ }^{ 235 }U{ }\) undergoes fission liberating 200 MeV of energy. The reactor has a 10% efficiency and produces 1000 MW power. If the reactor is to function for 10 years, find the total mass of uranium required.

  5. The binding energies per nucleon for deuteron \((_{ 1 }^{ 2 }{ H })\) and helium \((_{ 2 }^{ 4 }{ He) }\) are 1.1 MeV and 7 MeV respectively. Determine the energy released when two deuterons fuse to form a helium nucleus \((_{ 2 }^{ 4 }{ He) }\)

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