The velocity of thermal (slow) neutrons triggering nuclear fission reaction (having energy equal to 0.025 eV) is about ______________ metres/second?

Related Mcqs:

1. Velocity of the thermal neutron (< 0.025 eV) used for fission of U-235 is around _____________ m/sec?

   A. 1 B. 2200 C. 3 × 1011 D. 9 × 1021...

2. The number of neutrons accompanying the formation of 54Xe139 and 38Sr94 from the absorption of a slow neutron by 92U235, followed by nuclear fission is __________________?

   A. 1 B. 2 C. 3 D. 4...

3. Thermal neutrons which are used to cause the fission of U-235 have energy _____________ eV?

   A. < 0.025 B. > 1 C. 1-25 D. > 200...

4. Heavy water used in the nuclear reactors to slow down the speed of neutrons is __________________?

   A. Highly purified water B. A compound of oxygen and deuterium C. Water having dissolved salts of heavy metals D. None of these...

5. Critical energy should be _______________ the neutron binding energy of the atom in order to initiate a nuclear fission?

   A. Equal to B. Less than C. More than D. Either more or less...

6. An element having large number of ______________ is most easily subjected to nuclear fission?

   A. Protons B. Electrons C. Neutrons D. Nucleons...

7. Number of secondary neutron emitted on fission of an atom of U-235 by slow neutron bombardment is_______________?

   A. 3 B. 235 C. 200 D. 92...

8. Energy produced in the nuclear fission is of the order of _____________ MeV?

   A. 20 B. 200 C. 1000 D. 2000...

9. Which of the following accounts for the maximum energy release in the nuclear fission process ?

   A. Kinetic energy of fission products B. Radioactive decay of fission products C. Instantaneous release of γ-rays D. Kinetic energy of neutrons...

10. The ratio of neutrons to protons of an element having a mass number and atomic number of 80 and 40 respectively is ___________________?

    A. 1 B. 0.5 C. 2 D. 4...